separate by putting through a sieve
make a close and thorough examination (of things in a mass or group)
"The soldiers sifted through the woods"
"sift the flour"
"sift the information"
"sift through the job candidates"
Crushers sifted the ashes for any gold that had escaped the prospectors.
出自： D. M. Thomas
Mother makes the batter..sifting the flour.
出自： M. Atwood