I told them I was sleeping downstairs on the couch.我跟他们说我睡楼下的沙发

on the couch:<美口>在沙发上

He straightened himself out on the couch.

他在卧榻上伸直身子。

It makes sense that you're worried all the time.所以你这段时间才会这么担心的

make sense:讲得通； 有意义

It makes sense for him to be angry with such a mess.

他面对这一堆烂摊子发火,是可以理解的。

It makes sense to buy the most up-to-date version.

买最新的版本是明智的。

You refuse to be scared, even after everything that's happened.就算发生了这么多事情,你还是没被吓到

refuse to:拒绝, 不能

I refuse to answer that question.

我不愿回答那个问题。