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英汉词典
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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:2026-01-31 19:15:22