self-confidence造句

He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.
他从未表现出他前任的那种近乎傲慢的自信。

Lacking self-confidence and maturity, many teenagers are left feeling very vulnerable.
许多十几岁的孩子既缺乏自信又不够懂事,所以感情上十分脆弱。

What they said was a real knock to my self-confidence.
他们的话是对我自信心的一次重大打击。

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