to discard the dross and select the essential; to eliminate the crude and keep the refined; to separate the wheat from the chaff
在阅读大量资料时，我们需要学会去粗取精，提炼出真正有价值的信息。
When reading a large amount of material, we need to learn to discard the dross and select the essential, extracting truly valuable information.
Next Idiom