去芜存菁

qu4 wu2 cun2 jing1

lit. to get rid of the weeds and keep the flowers, to separate the wheat from the chaff (idiom)

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去蕪存菁|去芜存菁 [qù wú cún jīng] ► lit. to get rid of the weeds and keep the flowers ► to separate the wheat from the chaff (idiom)