The fox redoubled on its trail to escape the hunters.

那狐狸循原路折回逃避猎人。

We retraced our steps to where we started.

我们折回我们地方。

You might find your ticket if you retrace your steps back to the car.

如果原路折回到车子那里 ，就有可寻回你票。

The dog doubled on its tracks .

狗急忙折回逃跑。