他有气无力的握手透露出他在社交场合缺乏自信。
His diffident handshake suggested he lacked confidence in social settings.
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解释
diffident 是形容词，描述一个人因缺乏自信而表现得拘谨、不自然的状态。
His diffident handshake suggested he lacked confidence in social settings.
diffident 是形容词，描述一个人因缺乏自信而表现得拘谨、不自然的状态。