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be hard at it
be hard at it
英
[be hard at it]
美
[be hard at it]
中文释义
专心致志于…,刻苦钻研
单词分析
单词结构:
be hard at it
字母数:13
记忆提示
🎯 重点记忆:
单词拼写:be hard at it
核心含义:专心致志于…,刻苦钻研
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更新时间:2026-01-30 18:56:52