sour
US /saʊr/
UK /saʊr/

1.
2.
不愉快的, 不友好的
unpleasant or unfriendly
:
•
The meeting ended on a sour note.
会议在不愉快的气氛中结束。
•
Their relationship turned sour after the argument.
争吵之后,他们的关系变坏了。
1.
变质, 变酸
become unpleasant, acrimonious, or unfriendly
:
•
Their friendship began to sour after the misunderstanding.
误解之后,他们的友谊开始变质。
•
The milk will sour if left out of the fridge.
牛奶放在冰箱外面会变酸。