sift

1. V-T If you sift a powder such as flour or sand, you put it through a sieve in order to remove large pieces or lumps. 筛 (面粉、沙子等)

Sift the flour and baking powder into a medium-sized mixing bowl. 把面粉和发酵粉筛到一个中号搅拌碗中。

2. V-T/V-I If you sift through something such as evidence, you examine it thoroughly. 细查

Police officers have continued to sift through the wreckage following yesterday's bomb attack. 警官们继续细查了昨天炸弹袭击后留下的残骸。