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TOEFL IELTS BNC: 3576 COCA: 4370

filter

noun
 
/ˈfɪltə(r)/
/ˈfɪltər/
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  1.  
    a device containing paper, sand, chemicals, etc. that a liquid or gas is passed through in order to remove any materials that are not wanted濾器；過濾器
    • an air/oil filter空氣過濾器；濾油器
    • a coffee/water filter咖啡過濾器；濾水器
    • filter paper for the coffee machine咖啡機濾紙
    • He smokes cigarettes without filters.他吸沒有過濾嘴的香煙。
    Topics Scientific researchc1
  2. a device that allows only particular types of light or sound to pass through it濾光器；濾聲器；濾波器
    • The camera has an anti-glare filter.這種相機有防眩光濾光器。
  3. (computing計算機) a program that processes information to leave out the types that are not wanted, or that stops particular types of electronic information, email, etc. from being sent to a computer篩選（過濾）程序
    • Spam filters block out almost all threats.垃圾郵件過濾器可以屏蔽幾乎所有的威脅。
    Topics Phones, email and the internetc2
  4. (British English) a light on a set of traffic lights showing that traffic can turn left (or right) while traffic that wants to go straight ahead or turn right (or left) must wait（交通紅燈指示不得直行的同時，表示可左轉或右轉的）分流指示燈
    • a filter lane分流車道。
    5. Word Originlate Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum ‘felt used as a filter’, of West Germanic origin and related to felt.

filter

verb
 
/ˈfɪltə(r)/
/ˈfɪltər/
Verb Forms
present simple I / you / we / they filter
/ˈfɪltə(r)/
/ˈfɪltər/
he / she / it filters
/ˈfɪltəz/
/ˈfɪltərz/
past simple filtered
/ˈfɪltəd/
/ˈfɪltərd/
past participle filtered
/ˈfɪltəd/
/ˈfɪltərd/
-ing form filtering
/ˈfɪltərɪŋ/
/ˈfɪltərɪŋ/
Phrasal Verbs
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  1.  
    [transitive] filter something to pass liquid, light, etc. through a special device, especially to remove something that is not wanted過濾
    • All drinking water must be filtered.所有飲用水必須經過過濾。
    • Use a sun block that filters UVA effectively.使用能有效濾掉長波紫外線的防曬霜。
    • (figurative) My secretary is very good at filtering my calls (= making sure that calls that I do not want do not get through).我的秘書很會替我推掉不相幹的電話。
    see also filtration
    Wordfinder
  2. [transitive] filter something to use a special program to check the content of emails or websites before they are sent to your computer（用程序）篩選，過濾
  3. [intransitive] + adv./prep. (of people人) to move slowly in a particular direction緩行
    • The doors opened and people started filtering through.門開了，人們開始徐徐通過。
  4. [intransitive] + adv./prep. (of information, news, etc.信息、新聞等) to slowly become known慢慢傳開；走漏
    • More details about the crash are filtering through.關於這場空難的具體情況慢慢披露了。
  5. [intransitive] + adv./prep. (of light or sound光或聲) to come into a place slowly or in small amounts滲入；透過
    • Sunlight filtered in through the curtains.陽光從窗簾透了進來。
  6. [intransitive] (British English) (of traffic at traffic lights交通指示燈處的交通) to turn left (or right) at traffic lights while other vehicles wanting to go straight ahead or turn right (or left) must wait僅可左轉行駛Topics Transport by car or lorryc2
    7. Word Originlate Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum ‘felt used as a filter’, of West Germanic origin and related to felt.
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. 這些詞均表示過濾、篩。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 過濾（物質或光線）◆All drinking water must be filtered.所有飲用水必須經過過濾。◆Use a sunblock that filters UVA effectively.使用能有效濾掉長波紫外線的防曬霜。◆The air was improving as the recyclers filtered out the smoke.由於循環淨化器過濾掉了煙霧，空氣質量正在改善。■ purify ˈpjʊərɪfaɪ; NAmE ˈpjʊrɪfaɪ [transitive] to make sth pure by removing substances that are dirty, harmful or not wanted 使潔淨；淨化◆One tablet will purify a litre of water in 10 minutes.一片即可在10分鐘内淨化1升水。◆House plants can help to purify the air.室内盆栽有助於淨化空氣。▸ purification ˌpjʊərɪfɪˈkeɪʃn; NAmE ˌpjʊrɪfɪˈkeɪʃn

noun

 [uncountable] ◆a water purification plant濾水廠■ refine rɪˈfaɪn [transitive] to make a substance pure by taking other substances out of it, especially as part of an industrial process 精煉，提煉，去除雜質（尤指作爲一道工序）◆The process of refining oil produces several useful chemicals.煉油的過程會産生幾種有用的化學品。■ 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 濾，濾掉（多餘的水分）◆Use a colander to strain the vegetables.把蔬菜放在濾器裏控控水。◆Strain off any excess liquid.濾掉多餘的水分。■ sieve sɪv [transitive] to put sth through a sieve 篩；過篩；濾◆Liquidize or sieve half the soup and return it to the pot.把一半的湯打成濃汁或者濾一下，再倒回鍋裏。ⓘ 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指篩子、笊籬、漏勺等濾器。■ sift [transitive] to put flour, sugar or some other fine substance through a sieve or sifter 篩（面粉、糖或其他顆粒較細的物質）◆Sift the flour, baking powder and salt into a bowl.把面粉、發酵粉和鹽篩到碗裏。ⓘ In American English a sifter is a small sieve used especially for sifting flour. 在美式英語中，sifter尤指面粉篩子。
TOEFL IELTS BNC: 3576 COCA: 4370

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