源源不斷

Simplified: 源源不断

On the HSK 7-9 vocabulary list, at CEFR level C1.

yuányuánbùduàn ㄩㄢˊ ㄩㄢˊ ㄅㄨˋ ㄉㄨㄢˋ

    • in an unending stream continuous

      idiom

Character by character

Sources