| 单词 | 不知好歹 |
| 释义 | 不知好歹不知好歹[bù zhī hǎo dǎi]1.■not to know [distinguish] good from bad; not to appreciate what is good; not to know what's good for oneself; not to know chalk from cheese:你不但不谢他， 还埋怨他， 真不知好歹。You are really an ungrateful wretch to complain instead of thanking him. |
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