(资料图片仅供参考)

sour

酸的；馊的；脾气坏的

This orange tastes sour.

这橘子吃起来好酸。

The milk has turned sour.

这牛奶都变馊了。

Look at his sour face. Like we all owe him.

看看他那张臭脸，好像我们都欠他似的。