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- All their efforts were vain. 他们的一切努力都徒然无功。
- All their efforts are pushing towards a reorganization of the prison system. 他们正尽一切努力，以重建一套新的监狱体制。
- All their efforts ended in failure. 他们的一切努力都以失败而告终。
- Their efforts were not in vain. 他们的努力没白费。
- All their efforts seemed helpless. 他们的一切努力似乎是徒劳的。
- Over the years,letters of appreciation,words of thanks,and visits from former students have been a great encouragement for teachers and have been reassuring them that all their efforts are worthwhile. 这些年来，许多表扬的信件、感激的词语和已毕业的学生回校探访，对教师们来说都是激励的泉源，同时也一再的证明他们所付出的努力是值得的。
- Over the years, letters of appreciation, words of thanks, and visits from former students have been a great encouragement for teachers and have been reassuring them that all their efforts are worthwhile. 这些年来，许多表扬的信件、感激的词语和已毕业的学生回校探访，对教师们来说都是激励的泉源，同时也一再的证明他们所付出的努力是值得的。
- Their efforts are worthy of your support. 他们这样努力应得到你的支持。
- All my efforts were vain. 我的一切努力都白费了。
- The river mocked all their efforts to cross. 他们作了一切努力还是没能渡过这条河。
- Their efforts were finally crowned with success. 他们的努力终于取得圆满成功。
- All their efforts at reform have been set back. 他们所有的改革努力都遭受到挫折。
- Their efforts were painful to watch. 看着他们辛劳真是令人心痛。
- All their efforts came to nothing. 他们所有的努力都付之东流了。
- Their efforts were rewarded with success. 他们的努力获得了成功。
- All their efforts are pushing towards a reorganization of the prison system 他们正尽一切努力，以重建一套新的监狱体制。
- All our efforts were vain. 我们的一切努力都归枉然。
- Despite all their efforts, success remained elusive. 尽管他们做了种种努力，成功的把握还是不大。
- The barrenness of their efforts was due to poor management. 他们努力的徒劳无益归咎於管理不善。
- They work hard, but their efforts are not very productive. 他们很努力，但效率不太高。
