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首页 > 英汉词典 > be upon one's guard

be upon one's guard

英 [be upon one's guard]
美 [be upon one's guard]

中文释义

警惕,提防;警戒

单词分析

单词结构:

be upon one's guard

字母数:19

记忆提示

🎯 重点记忆:

  • 单词拼写:be upon one's guard
  • 核心含义:警惕,提防;警戒
  • 相关含义:警戒

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更新时间:2026-02-01 20:51:41

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