yuēdìngsúchéng
Mandarin
Romanization
yuēdìngsúchéng
(
Zhuyin
ㄩㄝ ㄉㄧㄥˋ ㄙㄨˊ ㄔㄥˊ
)
Hanyu Pinyin
reading of
約定俗成
/
约定俗成