极少使用。在柯林斯辞典中， self-confident 属于使用频率排在后 50% 的词语之一。
英式英语: self-confident ADJECTIVE
Someone who is self-confident behaves confidently because they feel sure of their abilities or value.
She'd blossomed into a self-confident young woman.
self-confident 的定义—— 柯林斯 英语词典
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