Someone patted me on the back.
有人在我背上轻轻地拍了一下。
I looked back to see if he was coming.
我向后瞧瞧，看他跟上来了没有。
He slowly backed his car into the garage.
他慢慢地倒车开进车库。
We all back our school team.
我们都支持我们的校队。
Give it back to me.
把它还给我。
He'll be back in two days.
他两天后回来。
He looked backwards over his shoulder.
他掉头向后瞧。
He looked backward thirty years.
他回顾到30年前。
This part of the country is still backward.
这一地区还很落后。
We used to have bacon and eggs for breakfast.
我们的早饭经常是薰肉和蛋。