It was a five-story building, and their flat was on the third floor.

这是一幢五层楼的建筑，他们的房间是在三楼。

youdao

We are rabbits. We have a new flat. It's on the third floor.

我们是兔子。我们有一间新的公寓。它在三楼。

youdao

The flat is on the third floor with 3 rooms, one of which is bedroom, the other two are bathroom and kitchen.

该单位是在3间客房，其中三楼是卧室，另外两个是浴室和厨房。

youdao

When not in use, the power-operated third row folds down at the push of a button to create a flat cargo floor.

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