confidence 是名词 译为信心，自信confident是形容词 译为自信的，确信的，深信的；有信心的可以有以下句型： I have enough confidence to do sth.= I am confident enough to do sth. (均译为我有足够的信心做某事）以上是比较常用的方法（初中为止的概念）以下是专业用法：confidence：1.信任;信赖 If you have 【confidence in】 someone, you feel that you can trust them. （后面为英文翻译，非常通俗，希望对你有帮助） 例句：I have every confidence in you （我完全相信你。）2. 自信;信心 If you have confidence, you feel sure about your abilities, qualities, or ideas. 例句： I have confidence to finish that work. (我有信心做完那项工作。）3. 肯定;把握 If you can say something with confidence, you feel certain it is correct. 例句： I can say with confidence that all the stories are fake. (我可以肯定的说整个故事都是假的。）4. 私下;秘密 If you tell someone something in confidence, you tell them a secret. 例句： We told you all these things in confidence. （我们告诉你的这些事都需要保密。)confident：1. 坚信的;有信心的If you are confident about something, you are certain that it will happen in the way you want it to. 例句： Management is confident about the way business is progressing.（管理层对业务发展的态势充满信心。）2. 自信的;充满信心的 If a person or their manner is confident, they feel sure about their own abilities, qualities, or ideas. 例句： She is a confident woman who is certain of her views. （她是一位充满自信的女性，对自己的观点深信不疑。）3. 肯定的;有把握的If you are confident that something is true, you are sure that it is true. A confident statement is one that the speaker is sure is true. 例句： She is confident that everybody is on her side... （她确信所有人都站在她这边。）希望以上对你有帮助。
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