源源不斷

• Pinyin: yuán yuán bù duàn
• English Definitions: a steady flow (idiom); an unending stream
• Notes: Classifiers: Other transcriptions: numeric: yuan2 yuan2 bu4 duan4, wadegiles: yüan² yüan² pu⁴ tuan⁴, bopomofo: ㄩㄢˊ ㄩㄢˊ ㄅㄨˋ ㄉㄨㄢˋ, romatzyh: yuan yuan buh duann