Reviewing Together After Class | Learn Chinese in English

Sentence explanations

1. 下课后你做什么？

   What do you do after class?

   下课后

   after class

   你

   you

   做

   do

   什么

   what

   More detail

   下课后 means “after class.” 下课 literally describes class ending or being over, and 后 means “after” when placed after a time or event expression. This pattern is reusable: 活动后 = “after the activity,” as in 吃饭后 (“after eating” or “after the meal,” depending on context). 你 is the second-person pronoun “you.” It does not by itself show whether “you” refers to one person or more than one; the context determines that. A contrasting form is 我, “I.” 做 is the verb “do” here. Its base form is also 做; Mandarin verbs generally do not change form for person or number. In 做什么, it asks about an activity: “do what?” The same verb can also mean “make” when the object is something being produced, so the object and context determine the intended sense. 什么 is the question word “what.” In Mandarin, a question word commonly stays in the position where the requested information would appear. Here it follows 做, the verb whose object is being asked about. The sentence therefore does not use subject–verb inversion or an equivalent of English “do” as a question auxiliary. Together, 下课后 sets the time, 你 is the person being asked about, and 做什么 asks about that person’s activity. The whole utterance means “What do you do after class?” It asks generally about an activity after class; the present-looking Chinese verb form does not itself mark a particular tense.

2. 我留在这里复习。

   I stay here and review.

   我

   I; me

   留

   stay; remain

   在这里

   here

   复习

   review

   More detail

   我 means “I” here. It is the first-person singular pronoun used for the speaker as the subject. The same form can also mean “me” when it is an object; its role comes from its position in the sentence. 留 means “stay” or “remain” here. Its base form is also 留; Chinese does not change this verb for person or number. Example: 他留在家里。 means “He stays at home.” 在这里 means “here.” 在 marks a location, and 这里 means “this place” or “here.” Together, 留在这里 means “stay here,” with 在这里 specifying the location. 复习 means “review” or “revise” previously learned material. It is a verb and does not change form for tense or subject in this sentence. Example: 我复习汉字。 means “I review Chinese characters.” The pattern 主语 + 留在 + 地点 + 复习 expresses remaining at a place and reviewing there. Thus 我留在这里 means “I stay here,” and 复习 adds the activity. As a whole, 我留在这里复习。 means “I stay here and review,” or “I stay here to review.”

3. 我们可以再用这个教室一会儿吗？

   Can we use this room for a while longer?

   我们

   we

   可以 … 吗

   can …?

   再

   again; further

   用

   use

   这个

   this

   教室

   classroom

   一会儿

   for a while

   More detail

   我们 means “we” and is the first-person plural pronoun. Chinese does not mark this form for gender or grammatical case. Depending on context, it may include the listener or refer only to the speaker’s group; this sentence and its translation establish the relevant “we” without requiring a further distinction. Example: 我们走。 — “We’re leaving.” 可以 expresses ability, possibility, or permission. Here, together with the final 吗, it asks whether the speakers can carry out the action. The reusable pattern 我们可以 + verb + …吗？ means “Can we …?”; 吗 turns the clause into a yes-no question. Example: 我们可以进去吗？ — “Can we go in?” 再 occurs before 用 and adds the idea of doing the action further or again. With the duration phrase that follows, it is understood here as using the room for additional time, matching “for a while longer.” Its meaning is not the duration itself. Example: 请再等五分钟。 — “Please wait another five minutes.” 用 is the verb “use.” Its form does not change for person, number, or tense in this sentence; time and aspect are conveyed by surrounding words or context. Example: 我用电脑学习。 — “I use a computer to study.” 这个 means “this” and identifies something near the speaker or otherwise presented as the relevant item. 这 is the demonstrative element and 个 is a common classifier; together they form the frequent pattern 这个 + noun, “this …”. Example: 这个问题很简单。 — “This question is simple.” 教室 means “classroom.” It is a noun, and 这个教室 means “this classroom.” Example: 教室很安静。 — “The classroom is quiet.” 一会儿 is a short, nonspecific period of time: “a while.” After an activity verb, as in 用一会儿, it gives the duration of the activity. It does not specify an exact number of minutes. Example: 我休息一会儿。 — “I’ll rest for a while.” Together, 我们可以 asks whether the speakers can perform the action, 再用 adds continued or additional use, 这个教室 identifies the classroom, and 一会儿 gives the approximate extra duration. The final 吗 makes the whole clause a yes-no question: “Can we use this room for a while longer?”

4. 课后我们可以留在这里。

   We can stay here after the lesson.

   课后

   after the lesson

   我们可以

   we can

   留

   stay

   这里

   here

   More detail

   课后 means “after the lesson.” 课 is “lesson/class,” and 后 means “after” when it follows a time expression. This pattern is reusable: 下课后 means “after class ends,” while 饭后 means “after the meal.” 我们可以 means “we can.” 我们 is “we”; in Chinese, it does not mark whether the listener is included, so the exact scope comes from context. 可以 is a modal verb meaning “can” here, expressing that staying is possible or allowed. A reusable pattern is 我们可以 + verb, as in 我们可以开始。 — “We can start.” 留 means “stay” or “remain.” In this sentence it is the main verb, and 留在 + place is a useful pattern: 留在家里 means “stay at home.” Do not confuse it with 流, which means “flow”; the pronunciation and character differ. 这里 means “here.” 这 identifies something near the speaker or the current location, and 里 means “inside” or “in.” Together, 这里 functions as a location word. A contrasting location word is 那里, “there,” referring to a place farther from the speaker or already identified elsewhere. Together, 课后 sets the time, 我们可以 expresses possibility or permission, and 留在这里 says where the staying happens. The complete utterance means: “We can stay here after the lesson.”

5. 知道这个很有用。

   That is helpful to know.

   知道

   know

   这个

   this; this thing

   有用

   useful

   More detail

   知道 means “to know” or “to be aware of.” Here it is the verb 知道 at the beginning of the subject-like clause 知道这个, meaning “know this.” A useful pattern is 知道 + information: 知道答案 means “know the answer.” 知道 does not itself mark past or present time; context supplies the time. 这个 means “this” or “this thing.” 这 is the demonstrative element, and 个 is a common measure word used in this demonstrative expression. Here the expression points to some understood information or matter; the exact referent is not specified. In the fixed translation, English uses “that” in the natural expression “helpful to know that.” 有用 means “useful.” Its base form is 有用; it is not an inflected form. A useful contrast is 有用 “useful” and 没用 “useless” or “of no use.” Example: 这个方法有用。—“This method is useful.” 很 appears before 有用 and makes the evaluation sound natural and emphatic as “very useful.” In this sentence, 很有用 evaluates 知道这个—the knowing of this information—rather than describing 这个 itself. Together, 知道这个 supplies the content being evaluated, and 很有用 says that knowing it is useful. Thus 知道这个很有用 means “That is helpful to know.”

6. 那我们一起在这里复习吧。

   Then let's review here together.

   那

   then

   我们

   we; us

   一起

   together

   在这里

   here

   复习

   review

   吧

   suggestion particle

   More detail

   那 means “then” here as a discourse connector. It links the suggestion to what has just been established, rather than identifying a particular object. A reusable pattern is 那 + clause: 那我们走吧。 — “Then let’s go.” 我们 means “we/us.” In this sentence, the fixed translation shows that it includes the speaker and the addressee. Chinese 我们 does not itself mark whether the group includes the listener; context determines that. 我们一起学习。 — “We study together.” 一起 means “together” and describes joint action. It commonly comes before the verb: 一起吃饭 — “eat together.” It is separate from 我们; 我们 identifies the participants, while 一起 describes how they act. 在这里 means “here.” 在 introduces a location, and 这里 means “here,” so the phrase places the action at this location. A parallel pattern is 在学校学习 — “study at school.” 复习 is the verb “to review” or “to revise” previously learned material. It does not show tense by changing its form; time is understood from context or expressed with other words. 我每天复习汉字。 — “I review Chinese characters every day.” 吧 is a sentence-final particle that makes the utterance a suggestion or proposal. With 我们, the pattern 我们 + action + 吧 commonly corresponds to “let’s …”: 我们休息吧。 — “Let’s rest.” Here, 吧 does not name an action; it marks the proposed, non-forceful tone of the whole clause. Together, 那我们一起在这里复习吧。 means “Then let’s review here together.” The sequence is: connect to the preceding point with 那, identify the participants with 我们, describe joint action with 一起, give the location with 在这里, state the proposed action with 复习, and turn the clause into a suggestion with final 吧.