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"通过他不断努力"可以用英文表达为"through his constant efforts"或"through his diligent efforts.""不断努力"的英文表达是"constant efforts"或"diligent efforts." "Constant"是形容词，意思是"持续的，不断的"，而"diligent"也是形容词，意思是"勤奋的，用功的"。
下面是几个例句：
He achieved success through his constant efforts. 他通过不断努力取得了成功。
She finally passed the exam through her diligent efforts. 她终于通过勤奋的努力考过了这场考试。
His constant efforts paid off when he was promoted to manager. 他不断努力的付出最终得到了回报——他被提升为经理。
Her diligent efforts in learning a new language paid off when she was able to speak fluently. 她在学习新语言方面的勤奋努力终于得到了回报——她可以流利地说这门语言了。
来源：作文地带整理
