One mistake and you're toast.

要是出一次错，你就完了。

《牛津词典》

That one mistake almost cost him his life.

那一个差错几乎使他丧命。

《牛津词典》

That one mistake has cost him dear over the years.

那一个差错使他多年来付出了沉重的代价。

《牛津词典》

One mistake now would bring total disaster.

VOA: special.2010.03.27

So what's one mistake that's apparent to some here?

所以这里的一个明显的错误是什么？

哈佛公开课 - 计算机科学课程节选

So I think this question is very much related to your first one about how we mistake what success really means.

我觉得这个问题与,你的第一个问题紧密相连,就是“我们对于成功的错误理解“

普林斯顿公开课 - 人性课程节选

But let no-one mistake how far above the rest of the world the US has risen.

BBC: Will the rise of the rest mean the decline of the US?

Troy Bayliss, who was leading comfortably, just crumbled under the pressure after he made one mistake.

BBC: Rossi is still the fastest, most talented rider out there

"I just made one mistake in the race and blew our chance, " the 27-year-old said.

CNN: Lorenzo extends MotoGP lead with Spanish success