This included digging up the road, laying the track and then building a strong roof over the top.

这包括挖掘道路，铺设轨道，然后在顶部建造一个坚固的屋顶。

youdao

This included digging up the road, laying the track and then building a strong roof over the top.

这包括挖掘道路，铺设轨道，然后在顶部建造一个坚固的屋顶。

youdao