know one's business

英 [know one's business]
美 [know one's business]

中文释义

精通自己一行

单词分析

单词结构：

know one's business

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：know one's business
  • 核心含义：精通自己一行

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更新时间：2026-03-13 10:55:35