downstairs是啥意思？？

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

downstairs: [ daʊn'steəz ]
a. 楼下的
ad. 在楼下
n. 楼下

1.She was ill and stayed in the downstairs bedroom for a whole day.
她病了，在楼下的卧室里呆了一整天。
2.We went downstairs from the kitchen to the cellar.
我们从厨房走到楼下地下室。

楼下

I just went downstairs.

downstairs 可以做adj之外，还可以做副词和名词。

mean:在楼下, 往楼下, 下楼

downstairs:楼下，upstairs:楼上

下楼

是口语