- say “I don't know” to every question—not know a thing; be entirely ignorant
- ♦ 她是拿定了主意“不干己事不张口, 一问摇头三不知”。 She's made up her mind not to open her mouth about matters that don't concern her, but to shake her head in answer to all questions.
| 词汇 | 一问三不知 |
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| 随便看 |
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