adv.
在楼下, 往楼下, 下楼
Down the stairs:
顺楼梯而下：
raced my friend downstairs.
往楼下追我朋友
To or on a lower floor:
向楼下或在楼下：
went downstairs to answer the front door.
下楼去开前门
adj.also （形容词） 也作
downstair
AHD:[-stâr”] [doun“stârz”]
Located on a lower or main floor.
在低层楼或底楼的
n.（名词）
AHD:[doun“stârz“] （与单数动词连用）
The lower or main floor.
低层楼或底楼
