They live together in Jiangsu, in the third floor of their mom's house.

他们住在江苏，在他们妈妈的房子三楼。

youdao

If somebody was sick in the third floor stairwell that's who we would be talking about.

那么如果有人在三楼楼梯间生病，那他就是我们应该照顾的人。

youdao

The storage and bathroom are placed in the second floor, and another bedroom is in the third floor.

储藏室和浴室被放置在二楼，另一个卧室位于三层。

youdao

Classes were held in a room on the third floor of a house.

VOA: special.2010.06.27

The heart of the industry is in the third-floor numbered boxes: sections 316 to 318 are closest to the finish line.

WSJ: The Derby: It's About Where You Sit

The announcement was made in the third-floor newsroom on June 2nd.

NEWYORKER: Changing Times

When Voorjans first moved here 24 years ago, he settled in the third-floor apartment, then expanded as other floors became available over the years until he had the entire house to himself.

WSJ: Inside the Eclectic Studio of Gert Voorjans