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TOEFL IELTS BNC: 3576 COCA: 4370
filter
fɪltəʳ ˈfɪltər
Word forms: plural , 3rd person singular present tense filters, present participle filtering, past tense , past participle filtered
1 VERB 过滤 To filter a substance means to pass it through a device which is designed to remove certain particles contained in it. 过滤

  • The best prevention for cholera is to boil or filter water, and eat only well-cooked food. [VERB noun]

    预防霍乱的最佳方法是将水煮沸或过滤，并且只食用煮熟后的食物。

SYN purify, treat, strain, refine
2 N-COUNT 滤器;过滤器 A filter is a device through which a substance is passed when it is being filtered. 滤器;过滤器

  • ...a paper coffee filter.

    咖啡过滤纸

SYN sieve, mesh, gauze, strainer
3 N-COUNT 滤声器;滤光器;滤波器 A filter is a device through which sound or light is passed and which blocks or reduces particular sound or light frequencies. 滤声器;滤光器;滤波器

  • You might use a yellow filter to improve the clarity of a hazy horizon.

    可以使用黄色滤光器让模糊的视野更加清晰。

4 VERB (光或声)隐约透过，缓缓传至 If light or sound filters into a place, it comes in weakly or slowly, either through a partly covered opening, or from a long distance away. (光或声)隐约透过，缓缓传至

  • Light filtered into my kitchen through the soft, green shade of the cherry tree. [V + into/through]

    光线透过樱桃树柔和的绿阴隐约照进我的厨房。

5 VERB (消息等)走漏，慢慢传开 When news or information filters through to people, it gradually reaches them. (消息等)走漏，慢慢传开

  • It took months before the findings began to filter through to the politicians. [V + through to]

    调查结果数月后才传到从政者的耳朵里。

  • News of the attack quickly filtered through the college. [VERB + through]

    有关袭击的消息很快就在该学院中传开了。

  • ...as indications filter in from polling stations. [V in]

    随着从投票站透露出各种迹象

  • ...the horror stories which were beginning to filter out of Germany. [V + out of]

    开始传出德国的恐怖故事

SYN seep, trickle, percolate, reach gradually
6 N-COUNT (路口的)转弯信号灯(或车道) A traffic filter is a traffic signal or lane which controls the movement of traffic wanting to turn left or right. (路口的)转弯信号灯(或车道) [British]
7 PHRASAL VERB 滤除;滤掉 To filter out something from a substance or from light means to remove it by passing the substance or light through something acting as a filter. 滤除;滤掉

  • Children should have glasses which filter out UV rays.

    儿童应该戴上滤除紫外线的眼镜。

  • Plants and trees filter carbon dioxide out of the air and produce oxygen.

    花草树木会过滤掉空气中的二氧化碳并制造氧气。

Phrasal verbs:
filter out
Trends of filter
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TOEFL IELTS BNC: 3576 COCA: 4370
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 sth◆to filter / strain / sieve sth through sth◆to filter / purify air / water◆to refine / sieve / sift sugar◆to sieve / sift flour◆to 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。
TOEFL IELTS BNC: 3576 COCA: 4370

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