沿原路返回; 将（某物）折起来; 调头就跑

1. 原路返回
If you double back you go back in the direction that you came from.

e.g. We drove past it and had to double back.
我们开过了，不得不原路返回。

verb

1. retrace one's course

e.g. The hikers got into a storm and had to turn back

Synonym: backtrackturn back