That was a nearly fatal mistake.

那几乎是一个致命的错误。

youdao

Mr Sócrates made the fatal mistake of delaying a big fiscal consolidation.

苏格拉底的致命错误是没能夯实财政基础。

youdao

Then Cavic made a fatal mistake, gliding toward the finish, while Phelps snuck in an extra half-stroke.

但是紧接着科瓦奇犯了致命错误，他滑向了终点。而菲尔普斯则拼尽全力发动了最后一击。

youdao

Bayer might have made a fatal mistake when it decided to release a higher-dose version of Baycol.

FORBES: Bayer's Headaches

Conservative cabinet minister Ken Clarke said on Wednesday that Britain leaving the EU would be a "fatal mistake".

BBC: Ken Clarke: Leaving EU would be catastrophic

Speaking of Giuliani, his decision to forgo the early primaries looked like a poorly considered, even fatal mistake last week.

FORBES: Pulpit Beats PowerPoint