成群結隊

Simplified: 成群结队

On the HSK 7-9 vocabulary list, at CEFR level C2.

chéngqúnjiéduì ㄔㄥˊ ㄑㄩㄣˊ ㄐㄧㄝˊ ㄉㄨㄟˋ

    • making up a group forming a troupe in large numbers as a large crowd

      idiom

Character by character

Sources