v.筛( sift的过去式和过去分词 );筛滤;细查;详审;
例句:
She sifted thistles through her thistle-sifter.
她用蓟筛筛蓟.
The dust sifted in through the cracks in the window.
灰尘从窗户的裂缝里钻了进来.
He sifted the evidence carefully.
他仔细地审查了证据.