这条狭窄的走廊连接着图书馆的两个主要阅览室。
The narrow ___passageway connects the two main reading rooms of the library.
这条狭窄的走廊通向图书馆的后门。
The narrow ___passageway leads to the back door of the library.
地下通道连接了两栋大楼。
The underground ___passageway connects the two buildings.