形容词
中文翻译：自信的
同义词：
['confident', 'self-assured', 'self-assured']
例句：
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1. She is self-confident in her ability to solve problems.
她在解决问题方面很自信。
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2.He was self-confident in his abilities and confidently took on the challenge.
他对自己的能力充满信心，并自信地接受了挑战。
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3.The young athlete was self-confident in his performance, even though he was nervous.
尽管他很紧张，这位年轻的运动员对自己的表现还是很自信。