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一、详细释义：
v.
阻止，阻挠，妨碍 [I,T]
例句：
Even thousands of mountains and rivers cannot obstruct our close friendship.
即使相隔千山万水，不能阻挡我们的深情厚谊。
例句：
The authorities are obstructing a United Nations investigation.
当局正在阻挠联合国的调查。
阻塞，堵塞 [I,T]
例句：
Tractors and container lorries have completely obstructed the road.
拖拉机和集装箱货车已经将这条路完全堵死了。
例句：
The fallen trees obstruct the road.
倒下的树将路堵住了。
遮住，挡住 [T]
例句：
Claire positioned herself so as not to obstruct David's line of sight.
克莱尔为了不挡住戴维的视线挪了一下位置。
例句：
Don't let anything obstruct the lens.
别让任何东西挡住镜头。
二、词义辨析：
block,bar,hinder,obstruct,prevent,hamper
这些动词均含有“阻止、阻塞”之意。block语气强烈，指有效堵住了通道，使人或物无法通过。bar含义与block很接近，指阻塞通道或禁止出入，但有对暗示不用障碍物的阻止或禁止。hinder语气较轻，多指阻碍、拖延人或事，强调使进展速度缓慢下来。obstruct正式用词，语气强，多指以干扰或设置障碍的方式阻碍交通，使不能自由畅通。prevent含义广泛，指采取预防措施或设置障碍去阻止某人或某事。hamper侧重因受到约束或阻碍而造成的行动困难。
三、参考例句：
The fallen trees obstruct the road.
倒下的树将路堵住了。
Don't let anything obstruct the lens.
别让任何东西挡住镜头。
This charm will slow down and obstruct attackers.
这个咒语将减缓攻击者的速度并阻止他们。
It is a crime for the President to obstruct justice.
总统阻挠司法是犯罪。
They unceasingly attempt to mutilate, to curtail, to obstruct personal freedom in any and all ways.
他们不断地试图从各个方面消灭、剥夺、限制个人自由。
Claire positioned herself so as not to obstruct David's line of sight.
克莱尔为了不挡住戴维的视线挪了一下位置。
Even thousands of mountains and rivers cannot obstruct our close friendship.
即使相隔千山万水，不能阻挡我们的深情厚谊。
France's new president has urged the Americans not to obstruct attempts to tackle climate change.
法国新任总统敦促美国人不要妨碍解决气候变化问题的进程。
Test designers should not let any of the given techniques obstruct the application of experience and common sense.
测试设计者不应该让任何给定的方法阻碍经验和常识的应用。
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