arched roof in advance of wall tunneling method

例句：

1. 1. The architect designed a modern office building with a sleek, arched roof.
   建筑师设计了一座现代办公楼，有着光滑的拱形屋顶。
2. 2. The old church had a beautiful, arched roof that was visible from the street.
   那座老教堂有一个漂亮的拱形屋顶，从街上就能看到。
3. 3. The new school building has a sleek, arched roof that blends seamlessly into its surroundings.
   新学校建筑有一个光滑、拱形的屋顶，与周围环境完美融合。