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I am sorry that he should be so half-hearted about the important work.
我很遗憾，他对这项重要工作竟这样敷衍塞责。
《新英汉大辞典》
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He is a half-hearted man, I don't think he will be successed.
他是个见异思迁的人，我想他不会有多大出息。
youdao
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He is a half-hearted man, I don't think he will be successed.
他是个见异思迁的人，我想他不会有多大出息。
youdao