词典释义：
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He tapped on the door, opened it, and entered with a certain diffidence.
他敲了敲门，打开了门，带着一些羞怯走了进去。
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She overcame her natural diffidence and spoke with great frankness.
她克服了胆怯的毛病，非常坦率地说出了自己的想法。
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He failed through diffidence.
他因缺乏自信而失败。
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We set his silence down to his diffidence.
我们把他的沉默归之于缺乏自信。
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You good at elocnte, but you diffidence. .
你擅长朗诵，但你缺乏自信。
词根 diffident
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diffident adj. 羞怯的；缺乏自信的；谦虚谨慎的
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diffidently adv. 缺乏自信地；踌躇地；羞怯地