pī​shā​jiǎn​jīn

to separate the wheat from the chaff

Senses

披沙拣金/ 披沙揀金 pī​shā​jiǎn​jīn to separate the wheat from the chaff

literally to sort gold from sand; to extract the essentials from a mass of material or be extremely careful in making a selection

References

synonym 去粗取精/去粗取精 披沙拣金/披沙揀金