- [countable, usually singular]
something that people think is important, usually because it is exciting or it makes them worried 大不了的： 人们认为重要的事情，通常是因为它令人兴奋或使他们担心So what's the big deal about the movie? 那么这部电影有什么大不了的？ He makes a big deal about the recent rise in gender equality. 他对最近性别平等的上升大做文章。 The former champion made a big deal of the fact he has been boxing for 27 years. 这位前冠军非常重视他已经打了27年的拳击了。 - big deal for somebody/something
This leak is a big deal for people who reuse passwords on other websites. 对于在其他网站上重复使用密码的人来说，这种泄露是一个大问题。
- [countable]
an important business agreement 大不了： 一项重要的商业协议Do these big deals make sense for shareholders? 这些大交易对股东有意义吗？
Idioms
big deal!
- (informal, ironic)
used to say that you are not impressed by something 没什么了不起 So he earns more than me. Big deal! 他不就是比我多赚点钱，有什么了不起的！
no big deal
- (informal)
used to say that something is not important or not a problem 没什么大不了；无所谓；没关系 If I don't win it's no big deal. 我输了也没关系。