请输入您要查询的英文单词:
单词
know one's stuff
释义
know one's stuff
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口
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精通业务,懂行
They answered all my questions correctly and without any pause for thought — they certainly know their stuff.
他们不假思索地正确回答了我的全部问题——他们肯定精通业务。
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更新时间:2026/5/8 6:27:12