源源 Words — Dong Chinese Dictionary

yuányuán

continuously

源源不断 yuányuánbùduàn in a steady stream

(idiom) continuous and unceasing, like the flow of a river; in an unending stream
源源不绝 yuányuánbùjué in an endless stream

continuously and without interruption; often used to describe water or a steady flow of something
源源而来 yuányuán'érlái to come in a steady stream

To arrive continuously and without interruption.
源源本本 yuányuánběnběn from beginning to end

from start to finish; in its entirety; according to the facts or the original story