Each guest has her own single room, or shares, on request, a double room.

每位客人都有自己的单人房间，经要求也可共用双人间。

《柯林斯英汉双解大词典》

We are practically full up, but I will see. What do you want, a single room or a double one?

我们宾馆几乎满了，但是让我看看，你想要什么样的房间，单人间还是双人间？

youdao

M: We are practically full up, but I will see. What do you want, a single room or a double one?

M：我们宾馆几乎满了，但是让我看看，你想要什么样的房间，单人间还是双人间？

youdao

The Crow's Nest consists of one room with partitions that divide into four cubicles, with a single bed in three and a double in the other - presumably suitable for partners or golfers who don't mind sharing.

BBC: US Masters: Did you know?