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1·It is my job to make sure that all pathways are clear of obstructions.

保证所有的道路通畅是我的职责。《牛津词典》

2·If all the coronary arteries are free of significant obstructions, all parts of the heart will receive equal amounts of oxygen.

如果冠状动脉没有重大堵塞，心脏的各个部位会收到等量的氧气。《柯林斯英汉双解大词典》

3·Check and remove any obstructions.

检查并移去一切障碍物。

4·Remove any possible obstructions from the lobby area.

撤离大堂区域内所有的障碍物。

5·The absence of obstructions is of course an idealization.

没有障碍物的情况当然是一种理想化的情况。

6·The new blood vessels bypass obstructions in the coronary arteries.

这条新的血管绕过冠脉的阻塞部位。

7·Solid obstructions that can physically deflect or stop objects are considered cover.

能在物理上挡折或阻挡物件的固体障碍属于掩蔽。

8·Obstructions of this sort make it all the harder to settle other essential matters swiftly.

类似这样的障碍使迅速解决其它重要事项更加困难。

9·In spite of all kinds of obstructions we succeeded in carrying most of our plans through.

尽管遇到了各种阻挠，但我们还是成功地实现了大部分计划。

10·So, all of these financial obstructions that we had built up were suddenly being swept away.

所以我们所有的金融障碍，都忽然消失了。

障碍

1·Photographs typically capture the presence of nature and are often free of man-made obstructions.

照片的特色在于捕捉自然之风采，往往不受人为障碍的约束。

2·Work at overcoming emotional obstacles and other personal obstructions without worrying so much about where they came from. Just get on with the work of living well.

不要担心这些情绪和其他的个人障碍源于何处，去克服他们，你只需要外委生活得更好努力。

3·So, all of these financial obstructions that we had built up were suddenly being swept away.

所以我们所有的金融障碍，都忽然消失了。

4·Convex polygons are a usefulrepresentation, since we know that there are no obstructions between any twopoints inside a polygon.

凸多边形是一个很有用的表示法，因为我们知道凸多边形内部任意两点之间没有障碍。

5·Intensive string operations and incautiously crafted regexes can be major performance obstructions, but the advice in this chapter helps you avoid common pitfalls.

密集的字符串操作和粗浅地编写正则表达式可能是主要性能障碍，但本章中的建议可帮助您避免常见缺陷。

(1)intestinal obstruction肠梗阻

(1)obstruction of justice妨碍司法公正；阻碍司法