be upon one's best behaviour

英 [be upon one's best behaviour]
美 [be upon one's best behaviour]

中文释义

(在接受考查或试用期间)行为检点，循规蹈矩，守规矩

单词分析

动词

单词结构：

be upon one's best behaviour

字母数：28

记忆提示

🎯 重点记忆：

  • 单词拼写：be upon one's best behaviour
  • 核心含义：(在接受考查或试用期间)行为检点，循规蹈矩，守规矩

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更新时间：2026-02-02 20:36:12