" She haunts the girls' toilet on the first floor, " said Hermione.

“她待在一楼的女生盥洗室里。”赫敏说。

On the first floor, there are six bedrooms.

第二层楼有六间卧室。

Refreshment will be available on the first floor.

一层有点心提供。

They have an office on the first floor.

他们在一楼有一间办公室。

On the first floor. Room 101.

在一楼， 101教室。

Not yet, I need to mop the floor first.

不呢，我需要先擦地。

Let's have a race to the first floor.

我们比赛谁先到一楼。

16. Refreshment will be available on the first floor.

一层有点心提供。

The man was collecting building materials when the first floor collapsed underneath him.

这名男子正在捡拾建筑材料时，突然下方一楼开始倒塌。

Well, Donna is with her grandkids on the first floor.

唐娜和她外孙们在二楼。

But they live in first floor, but here is 14 floors.

他们住在一楼，但这里是14层。

The money exchange is on the first floor, at the main entrance.

换钱在一楼，大门处。

My sitting-room is on the first floor, my bedroom on the third.

我的起居室在二楼，卧室在四楼。

I thought this meeting was on the first floor.

我以为这次会议在一楼。

I was put with Master Perboni, up stairs on the first floor.

我和比尔宝尼先生一起，在二楼楼上。

We can but the ground floor of a building is the first floor.

我们可以说，但建筑物的底层就是一楼。

But for us, the next floor can be the first floor.

但对我们来说，下一层可以是一楼啊。

Excuse me, where is the dining hall on the first floor of the dormitory building?

请问，宿舍楼一层的食堂在哪里？

The Louvre closed its first floor, and other museums have enacted emergency flood plans.

卢浮宫关闭了一层展馆，其他博物馆也启动了应急防洪计划。

The ground floor is the first floor and the next floor is the second floor.

“底层”就是一楼，那么下一层就是二楼。