她发誓要放弃熬夜的习惯,以改善睡眠质量。

She vowed to forswear her habit of staying up late to improve her sleep quality.

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She vowed to forswear her habit of staying up late to improve her sleep quality.

forswear 由前缀 for-(表示"完全、彻底")和动词 swear(发誓)组成,字面意思是"郑重发誓"。这个词在现代英语中通常表示"郑重放弃、戒除"某种习惯或行为,带有正式和决绝的语气。

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