He knew he had committed a grave error of judgment.

他知道自己犯了个严重的判断错误。

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Everyone seems to play games like this: not doing so is a grave error.

似乎，每个人都在玩着这样的游戏，不这么做绝对是个严重失误。

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He insisted that a grave error had been made in not providing the whale an ocean in which to swim.

对于木质地板的设计，他很恼火，觉得这是个严重的错误，因为没有为鲸鱼提供生活的海洋。

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" Mr. Goldberg responded by saying that the expulsion was a "grave error, " adding that the accusations were "baseless.

CENTERFORSECURITYPOLICY: Bolivian crisis escalates

Were the Bush administration to confine itself to such tactical responses to the present crisis, however, it would be making a grave error.

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"This is a grave error and we are certain that the army will know what to do, " she said, before Captain Pinochet's dismissal was announced.

BBC: NEWS | Americas | Army discharges Pinochet grandson