barrier, barricade
这两个词同源，它们的区别在于：
barricade指临时设置的障碍物，barrier则可指长期设置物。
barrier还可指不让人通过的栅栏、屏障，而barricade无此义。
obstacle，barrier，obstruction，bar，hindrance
这些名词都含“障碍(物)”之意。
obstacle指在达到目的或前进的过程中必须消除或绕过的障碍物，也指起阻碍作用的情况。
barrier常指临时的或者可能跨越的障碍。
obstruction常既指具体的障碍又可指抽象或喻意上的阻碍。
bar既可指阻止进出或通过的栅栏一类的障碍物，也可用于抽象意义障碍。
hindrance指妨碍他人进步或做事的人或物。
You must show your ticket at the barrier.
你在关卡处必须出示许可证.
——《现代英汉综合大词典》
A train plowed into the barrier at the end of the platform.
火车撞上了月台尽头的栅栏。
柯林斯例句
England's World Cup hero is determined to play through the pain barrier.
英格兰的世界杯英雄决定带伤上阵。
——柯林斯例句
The KAZ 11 was spotted adrift on the outer Great Barrier Reef on Wednesday.
kaz11号(文中的游艇)期三被发现浮游于大堡礁外的海面上.
——期刊摘选
As Kerr fled towards the exit, Boycott collared him at the ticket barrier.
克尔往出口方向逃窜，博伊科特在验票口逮住了他。
——柯林斯例句
The Great Barrier Reef is disappearing at an increased rate because of climate damage.
大堡礁因为变坏的气候正以很快的速度消失.
——期刊摘选
It's only been latterly that we've discovered that it's lots of individual reefs, around about 2,900 separate reef systems which make up the Great Barrier Reef.
直到近来我们才发现,它们其实是众多独立的礁石, 大约有2900个独立的礁石系,组成了大堡礁.
——《简明英汉词典》
But the barrier turned it back.
可是外面有栅栏挡着,无法进去.
——期刊摘选
The CMP process is also used to control film thickness and removal of barrier layers.
CMP技术也用于控制薄膜厚度及剥离隔离层.
——期刊摘选
Wind barrier is a main method to assure traffic safety, especially under strong crosswind.
风障是解决行车安全问题的主要手段, 尤其在强侧风环境下.
——期刊摘选
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.
——《简明英汉词典》
A large crowd crushed past the barrier.
大群的人挤过了障碍物.
——《简明英汉词典》
The age barrier appeared insurmountable.
年龄障碍看来是无法逾越的.
——《简明英汉词典》
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.
——《简明英汉词典》
The lorry went into a skid and crashed into the barrier.
卡车失控打滑撞到障碍物上.
——《简明英汉词典》
The angry crowds would not keep back the barrier.
愤怒的人群不肯站在栅栏后面.
——《简明英汉词典》
The Popular Front failed, as expected, to pass the 5 per cent barrier.
不出所料，人民阵线没能突破5%大关。
——柯林斯例句
In Bermuda, Sam's father took him on an excursion to a coral barrier.
在百慕大，萨姆的父亲带他到附近的珊瑚礁去游玩。
——柯林斯例句
I broke through the poverty barrier and it was education that did it.
我摆脱了贫困，这要归功于教育。
——柯林斯例句
I realized I had to surmount the language barrier.
我意识到我不得不克服语言障碍。
——柯林斯例句
The packaging must provide an effective barrier to prevent contamination of the product.
包装必须提供有效的保护，以免产品受污染。
——柯林斯例句
She took a step nearer to the barrier.
她朝障碍物又迈近了一步.
——柯林斯例句
She had been waiting for Simon to break down the barrier between them.
她一直在等待西蒙打破他们之间的隔阂。
——柯林斯例句
As each woman reached the barrier one of the men glanced at her papers.
每一位女士来到关卡前，其中一个男士便会扫一眼她的证件。
——柯林斯例句
No matter what a woman tries to do to improve her situation, there is some barrier or attitude to keep her down.
女性无论如何努力去改善自己的处境，总会受到一些障碍或看法的压制。
——柯林斯例句
He was one of the last of the crowd to pass through the barrier.
他是那群人里最后一批跨越障碍的。
——柯林斯例句
Spain ran England ragged early on but goalkeeper Ian Walker proved a formidable barrier.
西班牙队先是猛烈进攻，使英格兰队疲于奔命，但守门员伊恩·沃克防守甚严。
——柯林斯例句
They are fearful that unemployment will soon break the barrier of three million.
他们担心失业人数很快将突破300万大关。
——柯林斯例句
We want to promote cosmetics that appeal across the colour barrier.
我们想推销各种肤色的人都喜欢的化妆品。
——柯林斯例句
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