ㄍㄡˇgǒuㄍㄞˇgǎiㄅㄨˋㄌㄧㄠˇliǎochīˇshǐ

  1. 比喻惡習 不是答應不再結果還是狗改不了吃屎!」。

lit. a dog can't stop himself from eating shit (idiom)​, fig. bad habits are hard to change