Verifying an Unexpected Maintenance Visitor | Learn Chinese in English

Sentence explanations

1. 刚才有人敲门，说是来检查通风系统的。

   Someone knocked earlier and said they were here to inspect the ventilation.

   刚才

   earlier; just now

   有人

   someone; there is someone who

   敲门

   knock on the door

   说是

   said it was; said they were

   来检查

   come to inspect

   通风系统

   ventilation system

   More detail

   刚才 means “earlier” or “just now” relative to the speaking moment. It is a time adverb and normally appears before the event it dates, as here. Example: 刚才下雨了。 — “It rained just now.” 有人 means “someone.” 有 presents the existence or presence of a person, while 人 means “person”; together, the form refers to an unspecified person rather than identifying who they are. Example: 有人在门外。 — “Someone is outside the door.” 敲门 means “to knock on the door.” It is a verb-object combination: 敲 means “knock,” and 门 means “door.” The object is built into this compact, reusable expression. Example: 请先敲门。 — “Please knock first.” 说是 introduces what the person said or claimed. In this sentence, 是 does not mean that the speaker is identifying a person; it helps introduce the following explanation of the visit. Chinese often omits a repeated subject when it is clear from the preceding clause, so the person who knocked is understood as the person who said this. 来检查 combines 来 (“come”) with 检查 (“inspect” or “check”). Here, 来 presents the purpose of coming: the person said they had come in order to inspect something. 检查 is a lexical verb; its base form is unchanged here because Mandarin verbs do not inflect for person or number. Example: 他们来检查设备。 — “They came to inspect the equipment.” 通风系统 means “ventilation system.” 通风 means “ventilation” or “ventilating,” and 系统 means “system.” Together they form a noun phrase naming the thing being inspected. Example: 通风系统需要检查。 — “The ventilation system needs to be inspected.” The ending 的 completes the pattern 说是……的, which presents the stated explanation or purpose of an event. The sequence is therefore: 刚才 marks the time; 有人敲门 says that an unspecified person knocked; and 说是来检查通风系统的 says that this person said the purpose was to inspect the ventilation system. The whole utterance means: “Someone knocked earlier and said they were here to inspect the ventilation.”

2. 维修人员上门通常会通过大楼系统提前通知。

   Maintenance visits are usually announced through the building system.

   维修人员

   maintenance personnel

   上门

   come to the premises

   通常

   usually

   会

   will; be likely to

   通过

   through; by means of

   大楼

   building

   系统

   system

   提前

   in advance

   通知

   notify; announce

   More detail

   维修人员 means maintenance personnel or repair staff here. 人员 is a noun meaning personnel/staff, and 维修 identifies the maintenance function. This is a plural-capable collective description; the form itself does not mark a specific number. 上门 describes coming to the relevant person's home or premises to provide a service. It is a useful service-visit expression, rather than merely the general verb “come.” For example: 师傅会上门维修。 — “The technician will come to the premises to make the repair.” 通常 means “usually” and marks a customary or typical situation. It does not say that every visit follows this practice. A reusable pattern is 通常 + clause, as in 他通常坐地铁上班。 — “He usually takes the subway to work.” 会 expresses an expected or characteristic occurrence in this sentence: when maintenance personnel come to the premises, notification is normally expected. Here it need not mean a single definite future event. The combination 通常会 + verb is useful for describing what normally happens, as in 这种设备通常会自动报警。 — “This kind of equipment usually gives an automatic alarm.” 通过 introduces the means or channel used to do something: “through” or “by means of.” It is followed here by 大楼系统, the channel for the notification. For example: 请通过邮件联系我。 — “Please contact me by email.” 大楼 means “building.” It is a noun that can modify another noun directly, as in 大楼入口 — “the building entrance.” 系统 means “system.” In 大楼系统, it refers to the building’s system as a whole; the sentence does not specify what technical system or channel this is. Chinese commonly places a noun modifier directly before the noun it describes: 大楼 + 系统. 提前 means “in advance” or “ahead of time.” It indicates that the notification occurs before the maintenance visit, not necessarily how long before it. For example: 请提前预约。 — “Please make an appointment in advance.” 通知 is a verb meaning “to notify” or “to announce.” In this sentence its object is not stated; the sentence focuses on the act and the channel rather than naming the recipients. As a noun, 通知 can also mean “notice” or “notification,” but that is not the function of the observed form here. Together, 维修人员上门 sets up the situation of maintenance personnel coming to the premises. 通常会 presents the following action as the normal expected practice. 通过大楼系统 gives the means, and 提前通知 says that notification is made beforehand. Thus the whole utterance means: “Maintenance visits are usually announced through the building system.”

3. 这让我提高了警惕，所以我没有让他们进来。

   That made me cautious, so I did not let them in.

   这

   this; that

   让我

   made me

   提高

   raise; increase

   警惕

   caution; vigilance

   所以

   so; therefore

   我没有

   I did not

   让他们进来

   let them in

   More detail

   这 means “this/that” as a demonstrative referring here to the relevant situation or event. It comes before the verb phrase and serves as its subject. The form does not itself identify a particular person; the context and translation support an event-based reading here. 让我 combines 让 “to cause/allow” with 我 “me.” In this sentence, 让 has a causative meaning: “cause me to …,” and 我 is the person affected. A reusable pattern is 让 + person + verb phrase, as in 这让我很担心 — “This makes me very worried.” 提高 means “raise” or “increase.” Its base form is already 提高; Mandarin does not mark this verb for past tense by changing its form. Here it describes increasing a level or state rather than physically lifting an object. 警惕 means “caution” or “vigilance.” 提高警惕 is a common combination meaning “become more vigilant” or “heighten one’s caution.” The sentence uses 提高 to describe an increase in 警惕; it does not mean simply “raise” in a physical sense. For example, 我们要提高警惕 means “We need to stay more alert.” Together, 让我提高了警惕 means “made me more cautious.” The 了 after 提高 presents the increase as a completed or achieved change in this situation. It is not a past-tense ending that changes the verb’s base form. 所以 means “so” or “therefore.” It links the preceding cause with the result that follows. A reusable pattern is 因为……，所以…… — “because …, so …,” although the 因为 part can be omitted when the cause is already clear. 我没有 contains 我 “I” and 没有, which negates an action viewed as not having happened. In 我没有让他们进来, it means “I did not let them in.” 没有 comes before the verb phrase; it is not part of the subject. 让他们进来 uses the same causative/permission pattern: 让 + person + action. 他们 is “them,” and 进来 means “come in/enter toward the relevant speaker or viewpoint.” Thus this chunk means “let them in,” with 他们 as the people who would enter. For example, 请让客人进来 means “Please let the guests in.” The complete structure is 这 + 让我提高了警惕，所以 + 我没有让他们进来: “That made me cautious, so I did not let them in.” The first clause gives the cause, and 所以 introduces the speaker’s resulting decision not to permit those people to enter.

4. 你这样处理是对的。应该先核实那个人是否有权进入。

   That was the right call. Their authorization to enter should be verified first.

   这样

   this way; like this

   处理

   handle; deal with

   对的

   right; correct

   应该

   should; ought to

   先

   first; beforehand

   核实

   verify; check

   那个人

   that person

   是否

   whether

   有权

   be authorized; have the right

   进入

   enter

   More detail

   这样 means “this way” or “like this.” Here it points to the way the action was handled. A reusable pattern is 这样 + verb, meaning “do something this way.” Example: 你这样做很好。 — “It is good that you do it this way.” 处理 is the verb “to handle” or “to deal with.” Here it describes handling the situation. Its base form is also 处理; Mandarin verbs do not change form for person or number. Example: 我们会处理这个问题。 — “We will deal with this problem.” 对的 means “right” or “correct” here. 对 is the core adjective, and 的 helps complete the adjective expression in 是对的; it is not a tense marker. 对 contrasts with 错 (“wrong”). Example: 你的答案是对的。 — “Your answer is correct.” 应该 expresses what ought to happen or what is advisable: “should.” It comes before the verb or verb phrase it modifies. Here it applies to the later action of verifying authorization. Example: 你应该先休息。 — “You should rest first.” 先 means “first” or “beforehand.” It marks the action that should happen earlier in an order. The pattern 先 + verb is reusable: 先检查，再打开。 — “Check first, then open it.” 核实 means “to verify” or “to check whether something is accurate or valid.” It is the main action in the second sentence. Example: 请核实信息。 — “Please verify the information.” 那个人 means “that person.” 那 identifies a person or thing as “that,” and 个人 means “person” in this noun phrase. Example: 那个人可以进去。 — “That person may go in.” The phrase identifies the person as “that person,” but it does not by itself state why the person is relevant. 是否 introduces an embedded yes-or-no issue, meaning “whether.” It is placed before the predicate being checked. Here it introduces the question of authorization to enter: whether that person has the right to enter. A common pattern is 核实 + subject + 是否 + predicate, meaning “verify whether [subject] [predicate].” Example: 请确认他是否已经到达。 — “Please confirm whether he has arrived.” 有权 means “to have the right” or “to be authorized.” 有 means “have,” and 权 refers to a right or authority; together they describe authorization rather than mere ability. Example: 只有工作人员有权进入。 — “Only staff members are authorized to enter.” 进入 means “to enter” or “to go into.” It is a relatively formal verb compared with some everyday ways of saying “go in.” Example: 请勿进入。 — “Please do not enter.” Together, 你这样处理是对的 says “Handling it this way was right” or “You were right to handle it this way.” 应该先核实 says that verification should come first. 那个人是否有权进入 is the embedded yes-or-no issue: whether that person is authorized to enter. The complete utterance therefore means: “That was the right call. Their authorization to enter should be verified first.” This wording clearly recommends verifying the relevant authorization before the next step.

5. 你能查一下是否确实安排了检查吗？

   Could you check whether an inspection is actually scheduled?

   你能

   can you

   查

   check

   是否

   whether

   确实

   actually

   安排了

   was scheduled

   检查

   inspection

   More detail

   你能 combines 你 (“you”) with 能, a modal meaning “can” or “be able to.” In this sentence it makes the request less direct than an imperative. 能 is followed by the action being requested: 你能查一下吗？ means “Can you check?” The 一下 after 查 softens the request and suggests doing the action briefly; it does not change 查 into a different verb. 查 means “to check” or “to look up.” Its base form is already 查; it is not an inflected form here. In this sentence the object of checking is the following question clause. Example: 我查一下记录。 — “I’ll check the records.” 是否 introduces an embedded yes-or-no question, meaning “whether.” It is a formal or neutral alternative to the pattern 是不是, and it does not itself assert either answer. Example: 请确认是否需要帮助。 — “Please confirm whether help is needed.” 确实 means “actually,” “indeed,” or “really” in the sense of checking whether something is genuinely the case. Here it modifies the claim that the inspection was arranged; it is not part of the request meaning “check carefully.” 安排了 consists of 安排, “to arrange or schedule,” plus 了. 安排 is the base form, while 了 marks the event as completed or viewed as having taken place. Thus 安排了 presents the scheduling as an arrangement that has been made, not necessarily as a simple past tense in every context. Example: 他们已经安排了会议。 — “They have already scheduled the meeting.” 检查 means “inspection” here, as the scheduled event. The same written form can also be a verb meaning “to inspect” or “to check,” so its role comes from the sentence: after 安排了, it functions as the thing arranged. Example: 明天有一次检查。 — “There is an inspection tomorrow.” Together, 查一下 asks someone to check, and 是否确实安排了检查 makes the content of that check an embedded yes-or-no question: whether an inspection has in fact been scheduled. The complete utterance therefore means, “Could you check whether an inspection is actually scheduled?”

6. 我会查一下记录，然后通过门户给你发消息。

   I will check the records and send you a message through the portal.

   我会

   I will

   查一下

   check briefly

   记录

   records

   然后

   then

   通过

   through

   门户

   portal

   给你

   to you

   发

   send

   消息

   message

   More detail

   我会 combines 我 “I” with 会, which here expresses a future intention or expected action: “I will…”. 会 can also express ability or likelihood in other contexts, so the surrounding verb determines the reading. Example: 我会回来。= “I will come back.” 查一下 means “check” with 一下 making the action sound brief, limited, or more courteous. 查 is the verb “to check, look up, or investigate”; 一下 does not necessarily assert a measurable duration. Example: 请查一下这个号码。= “Please check this number.” 记录 is the noun “record(s)” here. It can refer to written or stored information. The same form can also function as a verb meaning “to record,” so its position and role in the sentence matter: 查记录 means “check records,” while 记录信息 means “record information.” 然后 means “then” and links the next action in sequence to the preceding one. The pattern A，然后B means “do A, then do B.” 通过 introduces the route or means used to do something: “through” or “via.” It can also mean “to pass,” but that is a different use. Here it marks the channel for sending the message. 门户 is the noun “portal.” In this sentence it is the channel or system through which the message is sent. As a noun, it follows 通过 in the pattern 通过 + channel. 给你 marks the recipient: 给 means “to/for” in this use, and 你 is the second-person pronoun “you.” The pattern 给 + person + verb indicates who receives or benefits from the action. Example: 给你打电话。= “Call you.” 发 is the verb “to send” here. It is a general sending verb and can be followed by the item being sent, as in 发消息 “send a message.” It can have other meanings in other contexts, such as “to issue” or “to emit.” 消息 is the noun “message.” In 发消息, it is the thing sent. Example: 她发消息给我。= “She sends me a message.” Together, 我会查一下记录 gives “I will check the records.” 然后 marks the next action: 通过门户给你发消息 means “send you a message through the portal,” with 通过门户 naming the route and 给你 naming the recipient. The complete utterance therefore means: “I will check the records and send you a message through the portal.”

7. 我还是想在有人回来之前先知道情况。

   I would rather know before anyone comes back.

   我

   I; me

   还是

   still; rather

   想

   want to

   有人

   anyone; someone

   回来

   come back

   之前

   before

   先

   first; beforehand

   知道

   know; find out

   情况

   situation; circumstances

   More detail

   我 is the first-person pronoun “I/me.” Chinese pronouns do not change for grammatical gender, and 我 can refer to one speaker or, when context requires, a group including the speaker; here the fixed translation identifies the speaker as “I.” 还是 here conveys that the speaker continues to hold the preference or intention: “still” or, in this sentence’s preference reading, “would rather.” It is not the separate choice-question pattern meaning “or.” Example: 我还是想等一下。 — “I still want to wait a little.” 想 means “want to” here and introduces the action the speaker wishes to carry out. Its base form is 想; it does not change for person or number. The useful pattern is 想 + verb phrase, as in the example 我想先回家。 — “I want to go home first.” 有人 means “someone” or “anyone” in this context. It is formed with 有 (“there is/are; have”) and 人 (“person”), giving an indefinite person rather than naming a particular individual. The surrounding 之前 clause makes the intended meaning “before anyone comes back,” without identifying who that person is. 回来 means “come back” or “return.” It combines 回 (“return/go back”) with 来 (“come”), and the compound describes movement back toward the relevant place or viewpoint. Example: 他晚上回来。 — “He will come back in the evening.” 之前 means “before” and places the event in its clause earlier than a reference event. A reusable pattern is 在 X 之前 or simply X 之前, meaning “before X.” Here, 有人回来之前 is the time clause “before anyone comes back.” 先 means “first” or “beforehand.” It marks the ordering of the speaker’s knowing the situation before the return event. It is different from 之前: 之前 establishes the time relation between clauses, while 先 highlights which action is done first within the intended sequence. Example: 请先看说明。 — “Please read the instructions first.” 知道 means “know” here, with the context supporting the practical sense “find out” or “learn.” It is a state verb: 知 is not a standalone English-style tense marker, and 知道 itself does not change for person or number. Example: 我想知道答案。 — “I want to know the answer.” 情况 means “the situation” or “the circumstances.” It is a noun referring to the relevant state of affairs, not to a person or a specific physical object. Example: 请告诉我情况。 — “Please tell me the situation.” Taken together, 我还是想 gives “I still want to” or “I would still rather,” 先知道情况 gives “know the situation first,” and 有人回来之前 gives “before anyone comes back.” The complete utterance therefore means: “I would rather know the situation before anyone comes back.”

8. 在确认之前，除非你本来就在等那个人，否则不要让任何人进来。

   Until it is confirmed, do not let anyone in unless you were expecting them.

   在确认之前

   before confirmation

   除非

   unless

   本来就在等

   were already waiting for

   那个人

   that person

   否则不要让

   otherwise, do not let

   任何人

   anyone

   进来

   come in

   More detail

   在确认之前 在确认之前 places the action relative to a point before confirmation: 在 + event + 之前 means “before [an event]”. Here 确认 means “confirm” or “confirmation” in this context, and the whole time phrase sets the period during which the instruction applies. A reusable example is 在出发之前检查护照。 — “Check your passport before departing.” 除非 除非 introduces the exception to the following instruction: “unless …”. A useful paired pattern is 除非 A，否则 B — “unless A, otherwise B.” The exception here is the condition that the person was already being expected. 本来就在等 本来 presents a pre-existing or expected situation, while 在等 presents waiting as an ongoing activity. Together here, 本来就在等 means “were already expecting/waiting for [someone]”; it does not mean that the waiting began at the time of speaking. 等 is the base verb “wait for” or “await,” and 在 + verb commonly marks an ongoing activity. Example: 我在等朋友。 — “I am waiting for a friend.” 那个人 那个人 means “that person.” 那 is the demonstrative “that,” and 个人 is a measure-word expression for a person. The wording identifies the person as a particular person in the situation, but the supplied sentence does not independently specify who that person is. 否则不要让 否则 means “otherwise,” and 不要让 gives a negative instruction: “do not let [someone] …”. 不要 + verb is a common way to tell someone not to perform an action. 让 means “let” or “allow” when it introduces the person whose action is being permitted. Example: 不要让孩子出去。 — “Do not let the child go outside.” 任何人 任何人 means “anyone” or “any person.” In this negative instruction, it refers broadly to no person being allowed in, apart from the exception already introduced by 除非. 任何 is useful for unrestricted reference: 任何人都可以参加。 — “Anyone can participate.” 进来 进来 means “come in” or “enter,” with 来 indicating movement toward the relevant viewpoint or location. 进 is the base directional verb “enter,” and 进来 combines entry with movement this way. Example: 请进来。 — “Please come in.” Whole utterance The sentence first sets the time condition with 在确认之前. It then gives an exception with 除非: the prohibition does not apply when the person was already being expected. 否则不要让任何人进来 supplies the ordinary instruction: otherwise, do not allow anyone to enter. Together, the intended meaning is: “Until it is confirmed, do not let anyone in unless you were expecting them.”