screen noun ⇨curtain (a screen door)⇨precaution (a screen of secrecy)⇨wall (a wooden screen)screen verb ⇨test1
curtain
noun
curtain ♦︎ blind ♦︎ drape ♦︎ screen ♦︎ shade ♦︎ hangingThese are all words for window coverings.这些词均表示窗帘。PATTERNS AND COLLOCATIONS 句型和搭配◆to draw / close the curtains / blinds / drapes / shades◆to pull the curtains / drapes◆to open the curtains / blinds / drapes / shades◆to draw / draw back / pull back the curtains / drapes◆to pull up / down the blinds / shades■curtain [countable] a piece of fabric that is hung to cover a window; a piece of fabric that is hung up as a screen in a room or around a bed, for example; a piece of thick, heavy fabric that hangs in front of the stage in the theatre窗帘；（起隔断作用的）帘，幔；（舞台上的）帷幕◆It was ten in the morning but the curtains were still drawn(= closed).早上10点钟了，可窗帘还是闭着的。◆a pair of curtains一对窗帘◆a shower curtain浴帘◆The audience was waiting for the curtain to rise(= for the play to begin).观众在等待拉幕开演。◆There was tremendous applause when the curtain came down(= when the play ended).幕落时响起了经久不息的掌声。◆We left just before the final curtain.我们刚好在演出结束前离开。ⓘ In American English curtain is used especially to describe a very thin piece of fabric that you hang at a window and that stops people outside from being able to see inside; in British English these are called net curtains.在美式英语中，curtain尤指可挡住外面视线的薄纱网眼窗帘；在英式英语中这称为net curtain。■blind [countable] a covering for a window, especially one made of a roll of fabric that is fixed at the top of the window and can be pulled up and down窗帘；（尤指）卷帘◆Pull up the blinds and let some light in.把卷帘拉上去，进点儿光。ⓘ A venetian blind is a blind that has flat horizontal plastic or metal strips going across it that you can turn to let in as much light as you want. * venetian blind指百叶窗帘，可调整叶片控制光线强度。■drape (especially NAmE) (NAmE alsodrapery / /ˈdreɪpəri/ / ) [countable, usually plural] a long thick curtain（厚长的）帘子，帷帘，帷幕◆blue velvet drapes蓝色丝绒帷帘■screen [countable] (especially NAmE) a wire or plastic net that is held in a frame and fastened on a window, or a door, to let in air but keep out insects纱窗；纱门◆Do you have screens on your windows?你的窗户上有纱窗吗？◆screen windows / doors纱窗；纱门■shade ( ˈwindow shade) (both NAmE) a blind窗帘；（尤指）卷帘◆The sun peered through the shades in the hotel room.阳光透过卷帘照进酒店房间。■hanging [countable, usually plural] a large piece of fabric that is hung on a wall for decoration（装饰用的）墙幔，帷幔◆wall hangings挂在墙上的装饰织物 see also hang ⇨ decorate
precaution
noun
precaution ♦︎ defence ♦︎ shield ♦︎ safeguard ♦︎ screen ♦︎ bufferThese are all words for sth that protects sb/sth from harm or danger.这些词均表示保护物、防御措施。PATTERNS AND COLLOCATIONS 句型和搭配◆a precaution / defence / shield / safeguard / buffer against sth◆as a precaution / defence / shield / safeguard / screen / buffer◆an adequate precaution / defence / safeguard◆to provide a defence / shield / safeguard / screen / buffer■precaution / /prɪˈkɔːʃn/ / [countable] (ratherformal) something that is done in advance in order to prevent problems or avoid danger预防措施；预防；防备◆Serious injury can occur if proper safety precautions are not followed.不遵行正确的安全措施就会出重伤事故。◆You must take all reasonable precautions to protect yourself.你必须采取一切合理的预防措施保护自己。 see also precautionary ⇨ protective■defence (BrE) (NAmEdefense) [countable, uncountable] something that provides protection against attack from sth that is harmful such as enemies, the weather or illness防御物；防务；防御能力◆The town walls were built as a defence against enemy attacks.城墙是为防御敌人进攻而修建的。◆The harbour's sea defences are in poor condition.港口的海防工事状况很差。◆The body has natural defence mechanisms to protect it from disease.人体对疾病具有先天防御机制。 see also defend ⇨ protect, defensive ⇨ protective■shield / /ʃiːld/ / [countable] a person or thing used to protect sb/sth, especially by forming a barrier保护人；掩护物；屏障◆The gunman used the hostages as a human shield.持枪歹徒用人质作人体盾牌。◆She hid her true feelings behind a shield of cold indifference.她把自己的真实感情掩藏在一副冷漠的外表后面。 see also shield ⇨ protect■safeguard /ˈseɪfgɑːd; NAmEˈseɪfgɑːrd/ [countable] an action or law that is designed to protect people from harm, risk or danger安全措施；保护措施◆The measures have been introduced as a safeguard against fraud.实行这些措施旨在防止欺骗行为。◆Stronger legal safeguards are needed to protect the consumer.需要更加强有力的法律措施来保护消费者。 see also safeguard ⇨ protect■screen [countable] something that prevents sb from seeing or being aware of sth, or that protects sb/sth遮蔽物；掩护物；屏障◆All the research was conducted behind a screen of secrecy.本项研究从始至终都是秘密进行的。◆We planted a screen of tall trees.我们种下一排大树作为屏障。■buffer [countable] a thing or person that reduces a shock or protects sb/sth against difficulties缓冲物；起缓冲作用的人◆Support from family and friends acts as a buffer against stress.家人和朋友的支持有助于减缓压力。◆Peacekeepers have been sent in to establish a buffer zone(= an area that keeps two other areas distant from one another) between the rival forces.已经派遣维和部队在交战双方之间建立缓冲带。
wall
noun
wall ♦︎ fence ♦︎ railing ♦︎ screen ♦︎ partitionThese are all words for structures that separate one space from another.这些词均表示隔断、围墙。PATTERNS AND COLLOCATIONS 句型和搭配◆a high / low wall / fence◆an internal wall / partition◆a perimeter wall / fence◆(a) metal / wooden fence / railings / screen / partition◆a glass screen / partition◆to erect a wall / a fence / railings / a screen / a partition◆to put up a wall / fence / screen / partition◆to build a wall / fence■wall [countable] a long, upright solid structure, made of stone, brick or concrete, that surrounds, divides or protects an area of land; any of the upright sides of a building or room城墙；围墙；墙壁◆a stone / brick wall石墙；砖墙◆He sat on the wall and watched the others playing.他坐在墙上看其他人玩儿。◆Hang the picture on the wall(= attach it to the wall) opposite the window.把画挂在窗户对面墙上吧。■fence [countable] a structure made of wood or wire supported by posts that surrounds, divides or protects an area of land, for example to mark the limits of an area, to keep animals in or to keep people and animals out栅栏；围栏◆Security guards with dogs patrolled the perimeter fence.带着警犬的保安在栅栏外围巡逻。 see also fence sth off ⇨ separate2■railing [countable, usually plural] a fence made of upright metal bars; one of these bars金属围栏；金属栏杆◆I chained my bike to the park railings.我用链子把自行车锁在公园的围栏上了。■screen [countable] an upright piece of furniture or equipment that is fixed or that can be moved to divide a room or to keep one area hidden or separate屏风；隔板；帘◆The nurse put a screen around the bed.护士绕床拉了一道帘子。■partition /pɑːˈtɪʃn; NAmEpɑːrˈtɪʃn/ [countable] a wall or screen that separates one part of a room from another隔断；隔扇；隔板墙◆The family had to smash through a glass partition to escape the fire.这家人只好打碎玻璃隔板逃离了火场。 see also partition ⇨ separate2
test1
verb
test water for purity检验水的纯度test your English考查你的英语➡ See also the entry for ⇨ try2另见try条第2义test ♦︎ experiment ♦︎ try sb/sth out ♦︎ pilot ♦︎ put sb/sth to the test ♦︎ screenThese words all mean to use or examine sth to find out how well it works or to check for problems.这些词语均表示试验、检验。PATTERNS AND COLLOCATIONS 句型和搭配◆to test (sb / sth) / try sth out / screen sb for sth◆to test sth / experiment / try sth out on sb / sth◆to test / screen patients◆to test a theory◆to put a theory to the test◆to fully / thoroughly test / pilot sth◆to test / screen (sb / sth) regularly / routinely◆to rigorously test sth / put sth to the test■test [transitive] to use or examine a machine, product or substance to find out how well it works or to find out more information about it; to examine the blood, a part of the body, etc. to find out what is wrong with sb or to check the condition of their health试验；检验；检查，化验（血液或身体部位等）◆Our beauty products are not tested on animals.我们的美容产品不用动物做试验。◆The water is regularly tested for purity.定期检测水的纯度。◆You should have your hearing tested.你应该测一测听力。◆Two athletes tested positive for steroids.两名运动员的类固醇检测呈阳性。■experiment [intransitive] to carry out a scientific experiment or experiments; to try new things, ideas or methods to find out how successful they are or what effect they have做试验；进行实验；尝试；试做◆Some people feel that experimenting on animals causes unnecessary suffering.有人觉得用动物做试验会带来不必要的痛苦。◆He wanted to experiment more with different textures in his paintings.他想在自己的绘画中更多地尝试不同的质感。◆I experimented until I got the recipe just right.我不断尝试，直至找到正合适的烹饪方法为止。■ˌtry sb/sth ˈout
phrasal verb
to use or test sb/sth in order to see how good or effective they are试用（某人或某物）◆They're trying out a new presenter for the show.他们正在为这个节目试用一名新的主持人。◆I've got an idea I'd like to try out.我有个主意想尝试一下。 see also try ⇨ try2■pilot [transitive] to test a new product, system or idea with a few people or in a small area before it is introduced everywhere试点；试行◆The recycling boxes have been successfully piloted in a number of areas.回收箱在一些地区试点过后取得成功。■put sb/sth to the ˈtest
idiom
(putting, put, put)to put sb/sth in a situation which will show what their true qualities are or how good they are at sth使受考验；使受检验◆His theories have never really been put to the test.他的理论从未真正经受过检验。◆He took her out on the ski slopes to put her skills to the test.他把她带到滑雪坡道，检验她的技能。■screen [transitive, often passive] to examine or do tests on a lot of people in order to find out if they have a particular disease or illness筛查（以检测是否有某种疾病）；检查◆Men over 55 should be regularly screened for prostate cancer.55岁以上的男人应定期做前列腺癌检查。