全部

1·Their efforts were unavailing.

他们的努力都付诸东流。《牛津词典》

2·All our efforts were in vain.

我们的所有努力都付诸东流了。《牛津词典》

3·His efforts were unsuccessful.

他的努力没有成功。《柯林斯英汉双解大词典》

4·His efforts were to no avail.

他的努力是徒劳的。《柯林斯英汉双解大词典》

5·They laughed at my puny efforts.

他们嘲笑我微不足道的努力。《牛津词典》

6·I felt proud of his efforts.

我为他的努力感到自豪。《柯林斯英汉双解大词典》

7·His efforts were amply rewarded.

他的努力得到了丰厚的回报。《牛津词典》

8·All my efforts ended in failure.

我的一切努力最后都无济于事。《牛津词典》

9·Their efforts to revive him were futile.

他们努力使他苏醒，但失败了。《牛津词典》

10·Efforts to preserve the peace have failed.

维护和平的努力失败了。《牛津词典》

(1)make arduous effortsv. 努力奋斗

(1)make concerted efforts共同努力