Louisiana officials want to start building sand berms as barrier islands, to block oil from entering the fragile marsh ecosystems;

路易斯安那州官员希望开始建造作为屏障的沙堤来阻止石油侵入脆弱的沼泽生态系统；

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The pool resourcefully sits on the narrowest part of the block, using its height to form a barrier on the rear access and to allow a plant room to service it, and, the surrounding lawn and garden.

泳池巧妙坐落在地块的最窄部分，利用其高度形成后面通道上的屏障，允许机房来处理它以及周围的草坪和花园。

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The traffic barrier will block the bad traffic behavior and block the pedestrian or bicycle or motor vehicle trying to cross the road.

交通护栏将阻拦不良的交通行为，阻拦试图横穿马路的行人或自行车或机动车辆。

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It's not unprecedented, and there's no current threat to water supplies, but officials are prepared to start building an underwater barrier to block the denser saltwater from moving further upstream, Corps spokesman Ricky Boyett said Friday.

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Hollande and his party consider this a stumbling block but not a barrier to raising taxes.

FORBES: High Court Says 'Non' To Millionaire Tax in France

The Egyptian government has also ordered an underground barrier to be built along the border with Gaza, to block the tunnels.

ECONOMIST: The Gaza Strip