a tool consisting of a wood , plastic or metal frame with a wire or plastic net fixed to it. You use it either to separate solids from a liquid , or you rub larger solids through it to make them smaller
发音
例句
1. We often shake flour through a sieve. 我们经常用筛子筛面粉。 2. Finally, it is like drawing water with a sieve. 到头来,竹篮打水一场空。