Though Ke Jie tried his best and he once saw the victory just a step away, he lost his best chance when he became excited.

尽管柯洁尽了自己最大的努力，他曾经看到胜利就在咫尺之遥，但当他变得兴奋时，他失去了最好的机会。

youdao

Once, when I was on my way back to my hometown, I lost my purse without even knowing it.

有一次在我回家乡的路上，我把钱包弄丢了都不知道。

youdao

Even a slender diplodocus, once believed to have tipped the scales at five and a half tonnes when alive, has lost a tonne and a half from its weight.

即使是一个瘦形梁龙，曾经被认为在活着的时候重达5.5吨，现在也减重了1.5吨。

youdao

His ideas were so endless that he was not even troubled when he once lost some music he had been writing.

VOA: special.2009.02.08

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Woods already has won once this year on Monday, when Torrey Pines lost an entire day to fog.

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