/saʊr/
形容词
酸的,有酸味的
These plums are a bit sour.
这些李子有点酸。
不友好的;坏脾气的,没好气的
Overnight, it seemed, their relationship had turned sour.
他们的关系似乎在一夜之间变糟了。
想跟读,去练习