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be busy doing sth
be busy doing sth
英
[be busy doing sth]
美
[be busy doing sth]
中文释义
正忙于做…
单词分析
单词结构:
be busy doing sth
字母数:17
记忆提示
🎯 重点记忆:
单词拼写:be busy doing sth
核心含义:正忙于做…
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更新时间:2026-02-01 20:57:45