| 41. | He could never fail to keep his promise. |
| 他决不会不信守诺言。
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| 42. | Our food and water will soon fail us. |
| 我们的食物和饮水快完了。
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| 43. | He will undoubtedly fail . |
| 他必将失败。
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| 44. | They fail utterly to understand their own obligation. |
| 他们完全不明白自己的义务。
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| 45. | The policy is bound to fail of its object. |
| 这项政策肯定达不到目的。
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| 46. | If you fail , make failure a stepping stone to success. |
| 假如你失败，就把它作为通向成功的垫脚石。
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| 47. | A fuse has blown ,causing the lights to fail . |
| 保险丝烧断了，电灯随之熄灭。
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| 48. | John thought that he would fail his driving test as usual, but this time, to his own surprise, he walked through it. |
| 约翰认为这一次又会像往常一样通不过驾驶考试，可是令他惊奇的是他轻易举地通过了。
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| 49. | This note is only a reminder.' If you receive a request like this, you cannot fail to obey it! |
| 谨此提请注意。如果你收到这样的恳求，你是不会不遵照执行的！
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| 50. | The pirates would often bury gold in the cave and then fail to collect it. |
| 海盗们过去常把金子埋藏在那个洞里，可后来却没能取走。
|