ground floor

US /ˈɡraʊnd flɔːr/
UK /ˈɡraʊnd flɔːr/
"ground floor" picture
1.

一楼, 底层

the floor of a building that is at the same level as the ground outside

:
The reception area is on the ground floor.
接待区在一楼
Our apartment is on the ground floor, so it's easy to access.
我们的公寓在一楼,所以很容易进入。