turn back
US /tɜːrn bæk/
UK /tɜːrn bæk/

1.
折返, 回头
to return to a starting point or to go in the opposite direction
:
•
We had to turn back because of the heavy snow.
由于大雪,我们不得不折返。
•
It's getting late, we should turn back now.
天色已晚,我们现在应该折返。
折返, 回头
to return to a starting point or to go in the opposite direction