背靠着背的

例句：

1. 1. She turned around to see who was behind her.
   她转过身去看看是谁在她后面。
2. 2. The car backed up the driveway because of the snow.
   因为下雪，那辆汽车倒退着开上了车道。
3. 3. He backed away from the situation quickly.
   他迅速从那种情况中退了出来。