chaff
noun /tʃæf/, /tʃɑːf/
/tʃæf/
[uncountable]Idioms - the outer layer of the seeds of grain such as wheat, which is separated from the grain before it is eaten
谷壳；糠 - straw (= dried stems of wheat) and hay (= dried grass) cut up as food for cows
（作为牛饲料的）麦秸，干草
词源noun Old English cæf, ceaf, probably from a Germanic base meaning ‘gnaw’; related to Dutch kaf.
Idioms
sort out/separate the wheat from the chaff
- to recognize the difference between useful or valuable people or things and those that are not useful or have no value
识别优劣；分清好坏；去芜存菁 - We sifted through the application forms to separate the wheat from the chaff.
我们仔细检查了申请表，把小麦和谷壳分开。
- We sifted through the application forms to separate the wheat from the chaff.