"It's only a hallway, but it determines the way people live." Li Yun-fei points out that in homes with an exterior hallway, each room has its own entrance. In homes with an interior passage, rooms have no front wall, instead being separated from an interior corridor by a curtain or screen.
「雖然只是一條走廊，卻決定人在其中生活的情形」，李允斐指出，所謂外廊式就是每個房間有單獨的門戶；內廊式則走廊在房子裡面，房間與房間是互通的。