sift /sift/ vt. 筛分，过滤；详审：sift the flour into a large bowl将面粉筛进一个大碗中；to sift (out) the good from the bad去粗取精He lay on the beach, sifting the sand through his fingers.他躺在沙滩上用手筛砂子玩。She sifted through her papers to find the lost letter.她仔细在文件中寻找那封丢失的信。