Stop off (at/in…): 中途停留
We stopped off at a hotel for the night?
我们中途停下来在一家旅馆住了一宿。
Back back: to return, especially to your home 返回，回去，回家
What time did you get back last night?
你昨晚什么时候回家的?
We'll return home in ten days time ….
我们十天后回来...
注意in:after a particular length of time 在(某段时间)之后
It'll be ready in a week's time.
只需一周的时间就会准备好.