sieve
n
1 utensil consisting of a wire mesh or gauze on a frame, used for separating solids or coarse matter (which do not pass through) from liquids or fine matter (which do pass through) 滤器; 漏杓; 筛子.
2 (idm 习语) have a memory/ mind like a sieve have a very bad memory; forget things easily 记性坏; 健忘. sieve, v [Tn, Tn.pr]
put (sth) through a sieve 用漏杓或筛子滤(某物)
sieve the flour into a bowl 把面粉筛进盆里.