PPS:也许我需要的不是一间房屋, 而是旅行拖车.

PPS : Perhaps what I need is not a house at all, but a travel trailer.

旅行拖车就像一座带有轮子的房子。

Trailers are like houses on wheels .

有些露营者驾驶旅行拖车,或把它挂在车后奔赴露营地.

Some campers have trailers which they drive or pull behind their cars to the camp sites.

我找了一量旅行拖车，把它停在那个我在那里做义工的有机农场，并且让它离了电网。

I got myself a caravan, parked it up on an organic farm where I was volunteering and kitted it out to be off-grid.