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英汉词典
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be at one's books
be at one's books
英
[be at one's books]
美
[be at one's books]
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单词结构:
be at one's books
字母数:17
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单词拼写:be at one's books
核心含义:用功地学习
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inspected approved
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mutual saving
nonvolatile acid
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pertained to
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更新时间:2026-04-09 08:16:57