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| знать что-либо назубок | |||
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| знать своё дело (быть компетентным специалистом: If someone knows his/her stuff, it means the person is very knowledgeable and skilled in that area – This carpenter really knows his stuff because he has 30 years of experience. Bullfinch) | |||
| знать своё дело; быть докой | |||
| не лаптем щи хлебать (Taras) | |||
| быть спецом по своей части (If Steve has built this deck all by himself, he sure knows his stuff! ART Vancouver) | |||
| знать своё дело | |||
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know stuff : 11 短语, 5 学科 |
| 一般 | 1 |
| 俚语 | 2 |
| 澳大利亚表达 | 1 |
| 谚语 | 3 |
| 马卡罗夫 | 4 |