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詞 effort:
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earnest and conscientious activity intended to do or accomplish something
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use of physical or mental energy; hard work
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a notable achievement
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a series of actions advancing a principle or tending toward a particular end
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超過信息內容強勢來襲編創,受專著權養護,侵權商標必究
海詞英語詞典,十二年公司