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Open the tool →沿流溯源 (yán liú sù yuán) is a Chinese idiom (chengyu) meaning “to follow a stream to its source”.
沿流溯源 is pronounced yán liú sù yuán in Mandarin Chinese.
Literally, 沿流溯源 means “Follow the stream, trace the source”. It is used to mean “to follow a stream to its source”.
沿:顺着。循着水流寻找源头。比喻深究事物的本末