1. C 屏障；障碍物　an object like a fence that prevents people from moving forward from one place to another
2. C 障碍；阻力；关卡　a problem, rule or situation that prevents sb from doing sth, or that makes sth impossible
3. C 分界线；隔阂；障碍　sth that exists between one thing or person and another and keeps them separate
4. C 难以逾越的数量或水平　a particular amount, level or number which it is difficult to get past

　abolish the ～　消除障碍
　break down the ～　消除障碍
　build a ～　设置障碍
　constitute a ～　设置障碍
　create a ～　设置障碍
　demolish the ～　消除障碍
　erect a ～　设置障碍
　form a ～　设置障碍
　overcome a ～　越过障碍物
　pass through a ～　通过栅栏
　place a ～　安置障碍物
　put a ～ across the road　在路上设关卡
　remove the ～　消除障碍
　set up a ～　设置障碍
　smash the ～　消除障碍
　tear down the ～　消除障碍
　artificial ～　人为的障碍
　cultural ～s　文化障碍
　ideological ～s　思想障碍
　impassable ～　不可逾越的障碍
　impenetrable ～　不可逾越的障碍
　insurmountable ～　不可逾越的障碍
　natural ～　天然屏障
　racial ～　种族隔阂
　social ～s　社会的障碍
　sonic ～　音障
　crush ～　栅栏
　police ～　警察屏障
　customs ～s　关税壁垒
　immigration ～s　移民障碍
　international trade ～s　国际贸易障碍
　language ～s　语言障碍
　sound ～　音障
　tariff ～s　关税壁垒
　trade ～s　贸易壁垒
　～ bar　障碍物
　～ capacitance　壁垒电容
　～ cream　护肤霜
　～ potential　壁垒电位
　crush against the ～s　压向栅栏
　crash through the ～　撞在障碍物上
　～ of race and religion　种族和宗教的鸿沟
　～s to human understanding　影响人的理解力的种种障碍
　～ to progress　对进步的障碍

　At length the barriers were opened and five knights advanced slowly into the area.　比武场的门终于开了，五位骑士缓缓进入场内。
　Barriers have been erected all along the route that the Pope will take.　教皇必经之路上已设置了许多障碍。
　These regulations would place barriers in the way of genetic research.　这些规定会为遗传学的研究设置障碍。
　The horse jumped over the wooden barrier.　那匹马跳跃过木头障碍物。
　Fans broke through the barriers and rushed onto the pitch.　球迷冲破护栏闯进球场。
　The figure for inflation could go through the 5 per cent barrier.　通货膨胀率可能会超过5%。
　The police put up barriers to control the crowd.　警察设置了栅栏以控制群众。
　He is the first player whose earnings passed the $10 million barrier.　他是第一位收入超过1000万美元大关的演员。
　Language differences did not appear to be a barrier.　语言差异看来不是障碍。
　Show your ticket at the barrier before you board the train.　上火车前先在进站口的验票处出示你的车票。
　The crowd had to stand behind barriers.　人群只好站在障碍物后面。
　Despite the language barrier, they soon became good friends.　尽管存在语言障碍，他们还是很快成为好朋友。
　They were on different sides of a high barrier.　他们被阻隔在高墙的两边。
　There was a barrier across the road at the frontier.　边境的道路上设了一道关卡。
　A tree fell across the road and made a barrier to traffic.　一棵树横倒在路上，挡住了交通。
　They erected dikes as a barrier against the sea.　他们筑堤挡海。
　Ozone is the earth's barrier against ultraviolet radiation.　臭氧是地球防止紫外线辐射的屏障。
　The country set up trade barriers against imported goods.　这个国家对进口货物筑起了贸易壁垒。
　We're trying to break down barriers between young people from both communities.　我们正试图消除两个不同社区的年轻人之间的隔阂。
　The river is a natural barrier between the two countries.　这条河是这两个国家之间的天然屏障。
　The river is the last barrier between the rebel army and the city.　这条河是阻拦叛军进入该城的最后一道屏障。
　Barriers between nations are reared by slow and infrequent communication.　国与国之间的隔阂是由沟通缓慢而又太少形成的。
　There was an impassable barrier between the white race and the one which they had reduced to slavery.　在白色人种和被他们奴役的种族之间有一道不可逾越的障碍。
　These newcomers have helped to break down some of the old barriers between the two parties.　这些新来者帮助消除了两党间的某些旧隔阂。
　There was no real barrier between reality and fantasy in his mind.　在他的头脑中，现实与幻想之间没有真正的界线。
　The mountains acted as a natural barrier to the spread of the disease.　山脉成为阻止疾病流行的天然屏障。
　The Yangtze River is a natural barrier to the north-east.　长江是东北面的一道天然屏障。
　Disability need not be a barrier to a successful career.　残疾不应该成为事业成功的障碍。
　Lack of confidence is a psychological barrier to success.　缺乏信心是阻碍成功的心理因素。
　Lack of confidence is the biggest barrier to investment in the region.　缺乏信心是在这一地区投资的最大障碍。
　High levels of debt are a major barrier to economic development.　高额负债是经济发展的主要障碍。
　Language differences are often a barrier to mutual understanding.　语言不同，常常阻碍到彼此的了解。
　Poor health and lack of money may both be barriers to educational progress.　身体不好与金钱匮乏都会妨碍学业的进展。
　Racism is a barrier to success.　种族主义是通向成功道路上的一道障碍。
　Shyness is one of the biggest barriers to making friends.　羞怯是交友的最大障碍之一。
　That different peoples speak different languages is a real barrier to understanding.　不同民族的人说不同的语言是增进了解的真正障碍。

 ♣ barrier, barricade
　参见barricade条。

　［同义词］ bar, difficulty, obstacle, obstruction, restriction
　［反义词］ advantage, help, opening, passage