1·And if you want to see the main attractions of Kamchatka you should leave the urban area and go into the wild.
如果你想游历堪察加半岛（Kamchatka）的主要景点，你应该走出城区，投入自然的怀抱。
2·Since the structure is located in a relatively dense urban area, the masonry walls also add protection against fire.
由于建筑位于相对密集的城区，砌体墙也增加了防火的功能。
3·The drop-out rate is highest in the poorest urban area.
最贫困城区的辍学率最高。
4·The ancient city walls were demolished and the urban area was expanded.
古城墙被拆掉了，城区被扩大了。
5·It's introduces how to adjust the propagation model of 3g core bands in metropolis, especially in the dense urban area.
介绍了特大城市，特别是在密集城区中，针对3g核心频段进行的传播模型校正。