约定俗成

約定俗成

yuēdìng-súchéng

idiom HSK 7-9 #64,791

Meanings

语言的很多规则都是约定俗成的。

Yǔyán de hěnduō guīzé dōu shì yuēdìng-súchéng de.

Many rules of language are established by convention.

这个说法虽然不太准确，但已经约定俗成了。

Zhège shuōfǎ suīrán bùtài zhǔnquè, dàn yǐjīng yuēdìng-súchéng le.

Although this expression isn't very precise, it has become accepted through common usage.

memory

约定 (to agree upon) + 俗 (custom) + 成 (to become) - something that becomes established through customary agreement.

约 yuē

定 dìng

俗 sú

成 chéng