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词义:障碍物

一.相关单词
obstacle ； obstruction ；barrier ； impediment ； barricade

二.各个击破
1.obstacle
n. 障碍（物）；障碍物（绊脚石，障碍栅栏）
eg.
Most competition cars will only roll over if they hit an obstacle.
大多数赛车只有在撞上障碍物时才会翻车。
To succeed, you must learn to overcome obstacles.
必须学会克服困难才能成功。

2.obstruction
n. 障碍物；阻碍的行为或例子；阻碍，受阻；妨碍议事
eg.
She had to have surgery to remove an obstruction from her throat.
为去除咽喉里的堵塞物，她不得不接受手术。
The lorry had been parked on the pavement, causing an obstruction.
卡车停在人行道上，引起了堵塞。

3.barrier
n. 障碍；屏障；栅栏；分界线
vt. 把…关入栅栏；用栅栏围住
eg.
Duties and taxes are the most obvious barrier to free trade.
关税和税收是自由贸易的最大壁垒。
There is no reason why love shouldn't cross the age barrier.
爱没有理由不能跨越年龄的阻碍。

4.impediment
n. 妨碍，阻止；口吃，结巴；障碍物；法定婚姻的障碍
eg.
He was satisfied there was no legal impediment to the marriage.
这一婚姻没有任何司法上的障碍，他对此很满意。
John's slight speech impediment made it difficult for his mother to understand him.
约翰有轻微的言语障碍，这令母亲很难理解他的话。

5. barricade
n. 路障，障碍物；防御，阻碍
vt. 设路障于，以障碍物阻塞；封锁，阻挡
eg.
Large areas of the city have been closed off by barricades set up by the demonstrators.
城市中大片地区被示威者设立的路障封锁了。

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