| 释义 |
 | 不 | | bù | 副 | | | 1 [before verbs, adjectives, and other adverbs; never before the verb 有] not; won't; not want to: | | | 我不会。 I don't know how. | | | 我不去。 I'm not going. or I won't go. | | | 他不是学生。 He isn't a student. | | | 他的病不 (很)严重。 His illness is not (very) serious. | | | 他昨天不来，可是今天来了。 He didn't come yesterday, but came today. |
| 2 [before certain nouns to form an adjective] un-; in-: | | | 不法 illegal; lawless | | | 不轨 against the law | | | 不道德 immoral | | | 不自在 ill at ease; uncomfortable |
| 3 [used alone or with a particle in responses] not so; no: | | | 您再吃一点儿吧。 ——不了，谢谢。 How about having some more? —No more, thanks. | | | 他不知道吧？ ——不，他知道。 He doesn't know, does he? —Yes, he does. | | | 他是上海人。 ——不是吧。 He comes from Shanghai. —No, I don't think so. | | | 他知道吗？ ——不，他不知道。 Does he know? —No, he doesn't. |
| 4 〈口〉 [at the end of a sentence to indicate a question]: | | | 你要咖啡不？ Some coffee? | | | 他现在身体好不？ Is he in good health now? |
| 5 [between a verb and its complement] cannot: | | | 打不开 unable to open | | | 进不去 cannot go in | | | 拿不动 (find sth. ) too heavy to carry |
| 6 [inserted within a reduplication, usu. preceded by 什么] no matter (how, where, etc. ): | | | 什么难学不难学，我保证学会。 No matter how hard I'll learn it. | | | 什么学历不学历，要有真才实学才行。 Formal schooling is all very well, but what matters is real knowledge and ability. |
| 7 [used correlatively with 就] if not. . . (then. . . ); either. . . or: | | | 他这会儿不 (是)在教室，就(是)在图书馆。 At this time, he's either in the classroom or in the library. | | | 晚上他不是看书，就是看报。 In the evening he either reads a book or a newspaper. |
| 8 [in polite formulas only] don't; needn't: | | | 不谢。 Don't mention it. |
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