1. one's own 某人自己的
This is my own book.
这是我的书。
2.go crazy for sb. 为某人着迷而疯狂
Some girls go crazy for the superstar.
有些女孩为那个超级巨星而疯狂。
3. make bucks 赚很多钱 buck指"一美元"
I hope to make bucks by selling cars to the rich.
我希望通过向富人卖轿车来赚很多钱。
4.spend...(in) doing sth.花费……来做某事
I often spend lots of moeny buying books.
我总是在买书上面花很多钱。
5.back and forth 来回地, 反复地
The guard walked back and forth in front of the gate.
警卫在大门前走来走去。