The towering trees that give the park its name naturally obstruct some sunset views from directly below the foliage, too, so the few vistas that allow unspoiled views become even more sacred.

公园里参天大树郁郁葱葱，会阻挡树下人们看日落的视线，所以少数几个能够看到完整落日美景的远景地就显得更加珍贵了。

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Newtonian and catadioptric telescopes have secondary (or diagonal) mirrors that obstruct a small percentage of light from the primary mirror.

牛顿望远镜和反射折射望远镜都有一个次级反射镜(或称斜反射镜)，它们阻挡了一部分主反射镜的发射光。

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Cern had to clean "soot-like dust" from the firehose-size pipes meant to contain an extreme vacuum so that nothing would obstruct the proton beams passing through.

欧洲粒子物理研究所必须清理从消防水带那么粗的管道里冒出的“煤烟般的灰尘”，所以要安装极端超高真空设施保证质子光束畅通无阻。

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If business comprehensively endorsed the euro, as well as the government, he would "think it wholly unproductive for the mayor to obstruct" that although that was different from his personal view, Mr Norris added.

BBC: Livingstone faces square mile

It makes it a crime for anyone to "knowingly obstruct" another person's entry or exit from a health-care facility.

CNN: Supreme Court upholds abortion protest limits

Cisneros is charged with 18 counts of obstructing or attempting to obstruct justice, making false statements and concealing information from the FBI.

CNN: Cisneros Indicted