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TOEFL IELTS BNC: 3576 COCA: 4370
filter

verb

filter ♦︎ purify ♦︎ refine ♦︎ strain ♦︎ sieve ♦︎ siftThese words all mean to separate sth from sth else, especially a solid from a liquid or larger solids from smaller solids. 这些词均表示过滤、筛。PATTERNS AND COLLOCATIONS 句型和搭配to filter / strain / sieve / sift sth into sthto filter / strain / sieve sth through sthto filter / purify air / waterto refine / sieve / sift sugarto sieve / sift flourto be finely sieved / sifted filter [transitive] to pass a substance or light through a special device, especially to remove sth that is not wanted 过滤(物质或光线)All drinking water must be filtered.所有饮用水必须经过过滤。Use a sunblock that filters UVA effectively.使用能有效滤掉长波紫外线的防晒霜。The air was improving as the recyclers filtered out the smoke.由于循环净化器过滤掉了烟雾,空气质量正在改善。 purify ˈpjʊərɪfaɪ; NAmE ˈpjʊrɪfaɪ [transitive] to make sth pure by removing substances that are dirty, harmful or not wanted 使洁净;净化One tablet will purify a litre of water in 10 minutes.一片即可在10分钟内净化1升水。House plants can help to purify the air.室内盆栽有助于净化空气。 purification ˌpjʊərɪfɪˈkeɪʃn; NAmE ˌpjʊrɪfɪˈkeɪʃn

noun

[uncountable] a water purification plant滤水厂
refine rɪˈfaɪn [transitive] to make a substance pure by taking other substances out of it, especially as part of an industrial process 精炼,提炼,去除杂质(尤指作为一道工序)The process of refining oil produces several useful chemicals.炼油的过程会产生几种有用的化学品。 strain [transitive] to pour food or another substance through sth with very small holes in it, for example a sieve, in order to separate the solid part from the liquid part 滤,滤掉(多余的水分)Use a colander to strain the vegetables.把蔬菜放在滤器里控控水。Strain off any excess liquid.滤掉多余的水分。 sieve sɪv [transitive] to put sth through a sieve 筛;过筛;滤Liquidize or sieve half the soup and return it to the pot.把一半的汤打成浓汁或者滤一下,再倒回锅里。A sieve is a tool for separating solids from liquids or larger solids from smaller solids, made of a wire or plastic net attached to a ring. The liquid or small pieces pass through the net but the larger pieces do not. * sieve指筛子、笊篱、漏勺等滤器。 sift [transitive] to put flour, sugar or some other fine substance through a sieve or sifter 筛(面粉、糖或其他颗粒较细的物质)Sift the flour, baking powder and salt into a bowl.把面粉、发酵粉和盐筛到碗里。In American English a sifter is a small sieve used especially for sifting flour. 在美式英语中,sifter尤指面粉筛子。

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