Translation of "small room" into Chinese

Maybe he feels comfortable and safe in a small room.

也许 他 感觉 舒服 在 一个 小房间 的 保险箱

She was well, although she had been kept isolated in a small room, chained by her foot.

在这十多天,绑匪用链子拴住她的脚,把她关在一间小屋里,还好妈妈安然无恙。