逆流溯源

nì liú sù yuán

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Definitions

  1. 1. to go back to the source

Child Words of 逆流溯源

流
liú

to flow

逆
nì

contrary

源
yuán

root

溯
sù

to go upstream

溯源
sù yuán

to investigate the origin of sth

逆流
nì liú

against the stream