出处:按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第39页(203字)
长期工作辛劳,因而病倒,例为了早日完成任务,他一直夜以继日地工作着,终于积劳成疾,一病不起。
He worked hard day and night to finish his assignment,fell ill from overwork and has been down ever since.