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。

The US has urged Russia to respect Ukraine's territorial integrity. In a statement, White House spokesman Jay Carney warned any intervention would be a grave mistake.

美国敦促俄罗斯尊重乌克兰的领土完整。美国白宫发言人杰伊·卡尼在一份声明中警告说，任何干预行动都会铸成大错。

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？

It would be a grave mistake to add to the forced liquidation currently dislocating markets by ill-considered or punitive regulations.

如果在现在这个时侯不经考虑地通过惩罚性的监管，将造成市场错位、投资者割肉离场的严重后果。

Science considers anthropomorphism toward animals a grave mistake, even a sin.

科学认为这是一个极大的错误甚至是罪过.

It is a grave mistake to theorize before one has data.

在尚未掌握数据资料之前建立理论,是一种严重的错误.

If you did, it would be in such a grave, quiet manner, I should mistake it for sense.

你即使胡说八道，也会是一付板着面孔，不动声色的神态，我还会误以为说得很在理呢。