sour grapes
US /ˈsaʊər ɡreɪps/
UK /ˈsaʊər ɡreɪps/

1.
吃不到葡萄说葡萄酸, 嫉妒
an attitude in which someone pretends to dislike something because they cannot have it or achieve it
:
•
Her criticism of his new car was just sour grapes because she couldn't afford one herself.
她对他的新车的批评只是吃不到葡萄说葡萄酸,因为她自己买不起。
•
He said he didn't want the promotion anyway, but I think it's just sour grapes.
他说他反正不想要那个晋升,但我认为那只是吃不到葡萄说葡萄酸。