I must pay a visit to the second storey.

我必须去二楼看看。

In the second storey of the Custom-House there is a large room, in which the brick-work and naked rafters have never been covered with panelling and plaster.

在海关大楼的二楼有一个大房间，里面的砖墙和裸露的椽子从来没有用镶板和灰泥覆盖过。