| 1. | It was a fruitless, harassing round .
这是枉费心机的，无可奈何的循环。 |
| 2. | Their cunning plans were of no use; he would not sell .
他们的诡计枉费心机；他不会卖。 |
| 3. | All was vain .
一切都是枉费心机。 |
| 4. | In vain he made changes among the politicians and generals .
他枉费心机地在政界人物和军事将领中间进行一些人事更动。 |
| 5. | I tried to attract her attention ， but failed
我想要引起她的注意，却枉费心机。 |
| 6. | He tried in vain to write down the movement
他妄图写文章诋毁这个运动，可是枉费心机。 |
| 7. | So please stop trying - what ' s the point in dying
-所以请不要枉费心机了-你死了有什么意义？ |
| 8. | He tried in vain to lure her away from husband and home
他企图诱使她离开丈夫和家庭，结果是枉费心机。 |
| 9. | It ' s all to no purpose ; i tell you that you are plowing the sand
这是徒劳无益的;告诉你,你在枉费心机。 |
| 10. | The reactionary government tried vainly to take the steam out of the protest movement
反动政府枉费心机地企图削弱这场抗议运动。 |
