1.The world looks to you today with regard to Geneva. I believe it would be a grave mistake and a blow to peace if it were allowed to fail.
我相信，如果会判破裂的话，那将会是一个严重的错误，也是对和平的巨大冲击。
2.it had been a grave mistake to trust Bellatrix and Malfoy: Didn't their stupidity and carelessness prove how unwise it was ever to trust?
信任贝拉特里克斯和马尔福就是重大的失误，他们的愚蠢和大意不是证明了相信别人是多么不明智吗？
3.Gates said that the president believes it would be a grave mistake for the United States to withdraw from its global responsibilities.
盖茨强调，奥巴马总统认为，美国若放弃其全球责任将是一个严重错误。
4.I have not supported such government equity interests, and it would be a grave mistake if the govern continued to maintain such ownership.
对政府的这些股权投资，我没有表示过支持。而如果政府一直持有这些股权的话，错误就会更大了。
5.Everything humans know of our planet we were told had been shared, you lied to us. You've made a grave mistake.
你们告诉我们，人类所掌握的所有关于赛博坦的情报都跟我们共享了，你们欺骗了我们.你们犯了个致命的错误。
6.It would be a grave mistake to abandon old-fashioned meritocracy just at the time when it is turning to women's advantage.
传统的精英管理制度对女性越来越有利，现在抛弃它真是大错特错了。
7.It was a grave mistake when he accused me of lying.
当他指控我说谎时，他犯了一个严重的错误。
8.This proved to be a grave mistake, costing the country numerous unnecessary casualties and some humiliating defeats.
然而，事实证明这是个严重的判断错误，美国为此付出惨痛的代价：很多不必要的伤亡和一些耻辱的败绩。
9.Everything at the party spoke of careful planning. 8 It is generally felt that his appointment was a grave mistake.
现在许多人觉得，当时对他的任命是个严重的错误。
10.Failure to do so would be a grave mistake.
如果未能采取相应行动，将铸成大错。