源源不斷 [－－－断]

Jyutping jyun4 jyun4 bat1 dyun6
Pinyin yuán yuán bù duàn

Definitions (CC-CEDICT)
  1. a steady flow (idiom); an unending stream
Definitions (Wiktionary)
  1. phrase, idiomatic
    like a steady stream; continuously
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #5149