sifter
篩的人,詳查者,篩子
Sift·er n.
1. One who, or that which, sifts.
2. Zool. Any lamellirostral bird, as a duck or goose; -- so called because it sifts or strains its food from the water and mud by means of the lamell░ of the beak.
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sifter
n : a household sieve (as for flour)