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溯
源
溯
源
Definitions2 characters
su4 yuan2
to investigate the origin of sth/to trace a river upstream back to its source
Usage•••frequent
Pronunciations
溯
源

As word

1
su4
to investigate the origin of sth/to trace a river upstream back to its source
2
yuan2
to investigate the origin of sth/to trace a river upstream back to its source