•When the cake is cooked, sift some icing sugar over the top of it.蛋糕做好后，在上面筛上一些糖粉。

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•The police are sifting the evidence very carefully to try and find the guilty person.员警正在非常仔细地检查证据，试图找出那个罪犯。

•After my father's death, I had to sift through all his papers.父亲去世后，我必须查看整理他的所有档。

•The police are trying to sift out the genuine warnings from all the hoax calls they have received.警方试图从他们接到的各种恶作剧电话中分辨出真正的报案电话。