“在屋内”的英语可以翻译为：in doors，within doors ...

索米斯在屋内兜了一圈, 压制一下心头升起的怒火.Soames made a tour of the room, to subdue his rising anger.将钱藏在屋内的偏僻之处.The money was hidden in odd corners all over the house.她在屋内忙来忙去的.She busies herself about the house....

外面，松树上的雨水滴落在屋顶上，嗒嗒作响。Rain pattered gently outside, dripping on to the roof from the pines.有一只鸟落在屋顶上。There was a bird perched on the roof.大雨噼里啪啦地打在屋顶上。Heavy rain splattered on the roof....