sour

US /saʊr/

・

UK /ˈsaʊə(r)/

B2 中上級

定義動画字幕

v. 友好的ではなくなる；友好的ではなくなる；腐らせてすっぱくさせる
adj. 意地が悪い；酸っぱい；すっぱい

例文

By the next day the wine had turned sour.

Their friendship has turned a little sour.