underground void

• 地下空间

underground void的用法和样例：

例句

1. Overlapping tunnels have emerged in facilitating the underground space utilization.
   由于地下空间的不断利用。
2. The underground space becomes the inevitable choice of city development as potential and abundant resources.
   地下空间作为潜在而丰富的资源成为城市发展的必然选择。