It's a big deal.

这是一件至关重要的大事。

youdao

It's a big deal to make a mistake in an exam.

在考试中犯错误没什么大不了。

youdao

It's a big deal, David, bigger than you know.

这事挺重要的，戴维，比你所知道的要重要。

youdao

"It's a big deal. How big a deal you have to measure piece by piece but clearly it is the first major change in our health care system since nineteen sixty-five so that's a long time coming."

VOA: special.2010.03.27

You just can't just cast it away, and say it's no big deal. But because it is a deal.

总不能置之不理，想着反正天也不会塌下来，那你就错了。

斯坦福公开课 - 经济学课程节选

So it's a very big deal sometimes.

所以有时候也是一件大事。

对于古怪教授 - SpeakingMax英语口语达人

"It's a big deal, " said Charles Lawrence, Planck project scientist at NASA's Jet Propulsion Laboratory, in a news briefing.

CNN: Better 'baby picture' of universe emerges

Being a creature of Silicon Valley, it's a big deal to Google to be considered a "thought leader" and not a follower.

FORBES: Magazine Article

If we can't win the next one, then it's a big deal.

NPR: Clippers Beat Grizzlies 112-91 In Playoff Opener