nononsense
adj. 不开玩笑的；正经的
例句
- When people pretend to be nononsense, I have to pretend to be nonsense. 别人都在假装正经，我只有假装不正经。
- Why are you so nononsense? 妳怎么一副正经八百的样子？
- Let's do something nononsense. 赶紧地，干点儿正经事。
- Why do you look so nononsense? 3.;你怎么一副正经八百的样子？