此项调查覆盖的地理区域非常广阔。

The survey covers a wide geographical area.

那片区域里的很大一部分海豚终将死去。

A large proportion of the dolphins in that area will eventually die

他们生活在社会边缘的过渡区域。

They lived in the twilight zone on the fringes of society.

当指针进入红色区域时，发动机就过热了。

When the needle enters the red zone the engine is too hot.

步行区域意味着孩子们可以在那里相对安全地玩耍。

Pedestrian zones mean that children can play in relative safety.

这些区域也应该设专门的自行车道。

Such areas should also be served by dedicated cycle routes.

当地的地方法规规定在特定区域饮酒属于非法。

The bylaw makes it illegal to drink in certain areas.

总共有大概1,500万人住在所选定的区域内。

In all some 15 million people live in the selected areas

两层浮油漂浮在7平方英里的区域上。

Two oil slicks are covering a total area of seven square miles

在这些区域内，交通限速是20英里/小时。

Inside these zones, traffic speeds are restricted to 20 mph.

警方摄像头已特别对准那一区域。

Police cameras had been specifically trained on that area.

在建筑密集区域，车速限制为每小时30英里。

A speed limit of 30 mph was introduced in built-up areas.

这个地区是世界上野生动物最为密集的区域之一。

The area has one of the world's greatest concentrations of wildlife