名词
中文翻译：自信
同义词：
['confidence', 'self-esteem', 'assurance', 'composure']
例句：
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1. He has a lot of self-assurance in his work.
他在工作上有很高的自信。
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2. She felt self-assurance when she won the competition.
她赢得比赛时感到自信。
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3. The new manager brought a lot of self-assurance to the team.
新经理给团队带来了很多自信。