"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.
Mother makes the batter..sifting the flour.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)