狗改不了吃屎

gǒu​gǎi​bù​liǎo​chī​shǐ

incorrigible

Bad habits or a person's nature are hard to change; a leopard cannot change its spots.

他虽然受过多次处分，但还是狗改不了吃屎，最近又犯法了。

created sense Mar 4, 2026, 02:25 AM