If you are travelling alone, the single room supplement is $25 a night.

如果你独自一人旅行，单人间的额外费用是每晚$25。

《柯林斯英汉双解大词典》

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》

She lived in a single room.

她住在一个单间里。

youdao

But about 1.5 million people are crammed into private homes, often as many as 24 to a single room.

VOA: standard.2009.06.19

And not a single young person in the room except my son, who was then a teenager who would tag along and see his father testify.

却没有一个年轻人在场,除了我儿子，是当时唯一的青少年,除了他没人跟着父亲参加听证会。

麻省理工公开课 - 媒体、教育、市场课程节选

They might be a couple of inches, or most footers so-- and so no single fiber stretches all the way across the room.

它们可能就几英寸,或者最多几英尺-,所以没有一根纤维可以单独,横跨整间屋子。

耶鲁公开课 - 死亡课程节选

There's almost a fireplace in every single room, and there are dozens and dozens of rooms.

WHITEHOUSE: The White House

The total effect of a single room and certainly of a whole visit could be both confusing and exhilarating.

WSJ: Barnes Collection | Albert C. Barnes | Ensemble: Albert C. Barnes and the Experiment in Education | Saving Dr. Barnes's Vision| By Eric Gibson

The simplest consist of a single room with a sink in the corner and a toilet behind a partition.

ECONOMIST: India's cheap housing boom