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TOEFL IELTS BNC: 4259 COCA: 4021

seal

verb
 
/siːl/
/siːl/
Verb Forms
present simple I / you / we / they seal
/siːl/
/siːl/
he / she / it seals
/siːlz/
/siːlz/
past simple sealed
/siːld/
/siːld/
past participle sealed
/siːld/
/siːld/
-ing form sealing
/ˈsiːlɪŋ/
/ˈsiːlɪŋ/
Idioms Phrasal Verbs
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    close envelope封上信封

  1.  
    seal something (up/down) to close an envelope, etc. by sticking the edges of the opening together封上（信封）
    • Make sure you've signed the cheque before sealing the envelope.一定要在支票上签了名再封信封。
    • a sealed bid (= one that is kept in a sealed envelope and therefore remains secret until all other bids have been received)密封（投）标
    2.

    close container密封容器

  2.  
    [often passive] to close a container tightly or fill a small opening, etc., especially so that air, liquid, etc. cannot get in or out密封（容器）
    • seal something (with something) He sealed the bag tightly with sticky tape.他用胶带将袋子牢牢地封住了。
    • be sealed (up) (with something) The windows and doors had been sealed up with bricks.门窗已经用砖块封严了。
    • The organs are kept in sealed plastic bags.这些器官保存在密封塑料袋里。
    Extra Examples
    • The containers must be carefully sealed so that no air can get in.这些容器必须仔细封好，不能让空气进去。
    • The whole unit is sealed to prevent dust getting in.整个装置是密封的，以防止灰尘进入。
    • The unit is completely sealed.这个装置处于完全密封状态。
    • a hermetically sealed container密封的容器
    Oxford Collocations Dictionaryadverb
    • carefully
    • properly
    • tightly
    • …
    preposition
    • from
    • with
    See full entry
    3.

    make something definite确定

  3.  
    seal something to make something definite, so that it cannot be changed or argued about确定；明确定下来；使成定局
    • to seal a contract订立合同
    • They drank a glass of wine to seal their new friendship.他们干了一杯，交成朋友。
    • The discovery of new evidence sealed his fate (= nothing could prevent what was going to happen to him).新发现的证据决定了他的命运。
    • She sealed victory with a birdie at the final hole.她在最后一洞用一只小鸟锁定了胜利。
    Topics Discussion and agreementc1

    4. cover surface覆盖表面

  4. [often passive] seal something (with something) to cover the surface of something with a substance in order to protect it封盖…的表面
    • The floors had been stripped and sealed with varnish.地板已清理干净，涂上了清漆。
    5.

    close borders/exits关闭边界／出口

  5. seal something (of the police, army, etc.警察、军队等) to prevent people from passing through a place关闭；封闭；封锁
    • Troops have sealed the borders between the countries.军队已关闭了两国边界。
    Oxford Collocations Dictionaryadverb
    • carefully
    • properly
    • tightly
    • …
    preposition
    • from
    • with
    See full entry
    6. Word Originverb Middle English (in senses (2), (5) and (6)): from Old French seel (noun), seeler (verb), from Latin sigillum ‘small picture’, diminutive of signum ‘a sign’.
Idioms
my lips are sealed
  1. used to say that you will not repeat somebody’s secret to other people（表示不会说出某人的秘密）我把嘴封住，我绝口不提
signed and sealed | signed, sealed and delivered
  1. definite, because all the legal documents have been signed签名盖章完毕的；铁定的；成定局的
    • The contracts are already signed and sealed.那些合同已经生效了。
    More Like This Alliteration in idiomsAlliteration in idioms

seal

noun
 
/siːl/
/siːl/
Idioms
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    official mark印章

  1.  
    [countable] an official design or mark, stamped on a document to show that it is real and carries the authority of a particular person or organization印章；图章；玺；印记
    • The letter bore the president's seal.信上盖有总统的印章。
    Oxford Collocations Dictionaryadjective
    • wax
    • presidential
    • privy
    • …
    verb + seal
    • break
    phrases
    • a/​the somebody’s seal of approval
    See full entry
    2.

    making something definite确认

  2.  
    [singular] a thing that makes something definite表示确认的事物；保证；信物
    • The project has been given the government's seal of approval (= official approval).项目已由政府正式批准。
    • I looked upon the gift as a seal on our friendship.我把你的礼物看作我们之间友谊的见证。
    Oxford Collocations Dictionaryadjective
    • wax
    • presidential
    • privy
    • …
    verb + seal
    • break
    phrases
    • a/​the somebody’s seal of approval
    See full entry
    3.

    on containers容器

  3.  
    [countable] a substance, piece of material, etc. used to fill a small opening so that air, liquid, etc. cannot get in or out密封垫（或带等）
    • a jar with a rubber seal in the lid盖子上有密封垫的广口瓶
    • Only drink bottled water and check the seal isn't broken.只喝瓶装水，并且要确保封口没有破损。
    4.

    on letters/boxes信件；盒子

  4.  
    [countable] a piece of wax (= a soft substance produced by bees), soft metal or paper that is placed across the opening of something such as a letter or box and which has to be broken before the letter or box can be opened封蜡；封铅；封条；火漆
    • He broke the wax seal and unrolled the paper.他揭去封蜡，把纸卷展开。
    • an official-looking letter with a wax seal带有蜡封、看上去正式的信件
  5. [countable] a piece of metal, a ring, etc. with a design on it, used for stamping a wax or metal seal封蜡模（印）；封铅模（印）

    6. sea animal海洋动物

  6. [countable] a sea animal that eats fish and lives around coasts. There are many types of seal, some of which are hunted for their fur.海豹
    • a colony of seals一群海豹
    • grey seals basking on the rocks在岩石上晒太阳的灰海豹
    • The annual seal hunt takes place on the pack ice off Greenland.一年一度的海豹狩猎发生在格陵兰岛的浮冰上。
    see also elephant seal, harp seal
    Extra Examples
    • Environmentalists claim there is no reason to cull seals.环保主义者称没有理由对海豹进行选择性捕杀。
    • The ad criticized hunters for clubbing baby seals.这则广告谴责用棍棒击杀小海豹的捕猎者。
    Topics Animalsb2
    Oxford Collocations Dictionaryadjective
    • baby
    verb + seal
    • hunt
    • club
    • cull
    • …
    seal + verb
    • bask
    seal + noun
    • pup
    • colony
    • cull
    • …
    See full entry
    7. Word Originnoun senses 1 to 5 Middle English: from Old French seel (noun), seeler (verb), from Latin sigillum ‘small picture’, diminutive of signum ‘a sign’. noun sense 6 Old English seolh, of Germanic origin.
Idioms
set the seal on something
  1. (formal) to make something definite or complete使某事万无一失；使某事圆满
    • Her election to the premiership set the seal on a remarkable political career.当选总理使她的政治生涯灿烂辉煌。
under seal
  1. (formal) (of a document文件) in a sealed envelope that cannot be opened before a particular time密封；加盖印信
TOEFL IELTS BNC: 4259 COCA: 4021
seal

noun¹

 1animal動物ADJECTIVE | VERB + SEAL | SEAL + VERB | SEAL + NOUN ADJECTIVE➤baby小海豹VERB + SEAL➤hunt捕獵海豹➤club用棍棒打海豹◇The ad criticized hunters for clubbing baby seals.這則廣告譴責用棍棒擊殺小海豹的捕獵者。➤cull (especially BrE) 選擇性捕殺海豹◇Environmentalists claim there is no reason to cull seals.環保主義者稱沒有理由對海豹進行選擇性捕殺。SEAL + VERB➤bask海豹曬太陽SEAL + NOUN➤pup小海豹➤colony海豹群▸➤cull (especially BrE) 對海豹的選擇性捕殺➤hunt獵殺海豹
seal

noun²

 2for a document文件ADJECTIVE | VERB + SEAL | PHRASES ADJECTIVE➤wax蠟封◇an official-looking letter with a wax seal帶有蠟封、看上去正式的信件➤presidential, privy, royal總統／私人／王室印章VERB + SEAL➤break開封條◇He broke the seal and opened the envelope.他撕下封條，拆開了信封。PHRASES➤a/the/sb's seal of approval正式批准◇Her report was given the seal of approval by senior management.她的報告得到了高級管理層的正式批准。
seal

verb

ADVERB | PREPOSITION ADVERB➤carefully, properly, tightly, well仔細密封；妥善密封；牢牢封住；封嚴實◇The containers must be carefully sealed so that no air can get in.這些容器必須仔細密封，以防空氣進入。➤completely完全密封◇The unit is completely sealed.這個裝置處於完全密封狀態。➤virtually實際上密封▸➤effectively有效地密封▸➤hermetically真空密封◇a hermetically sealed container真空密封的容器➤away, in, off, up封閉；封閉在裏面；封鎖；封上◇Police sealed off the area.警察封鎖了該地區。PREPOSITION➤from使與⋯隔絕◇The nuclear plant would be effectively sealed off from the world.該核電廠將與外界完全隔離開。➤with用⋯密封◇He sealed the bag tightly with tape.他用膠帶將袋子牢牢封住。
TOEFL IELTS BNC: 4259 COCA: 4021
seal verb
⇨ block 2 (a sealed plastic bag) ⇨ block 3 (seal the border)seal noun
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TOEFL IELTS BNC: 4259 COCA: 4021

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