get / turn nasty
翻脸;变凶
to become threatening and violent
You'd better do what he says or he'll turn nasty.你最好照他说的做,否则他就不客气了。
get / turn nasty
变坏;变得令人讨厌
to become bad or unpleasant
It looks as though the weather is going to turn nasty again.好像又要变天了。
释义来自《牛津高阶英汉双解词典》第 9 版