bum的意思有：
n.屁股；肛门；流浪汉；流浪乞丐；迷恋某项活动者；废物；懒汉
v.旅游；乞讨；使心烦；使失望；闲荡；虚度光阴
adj.劣质的；差的；错误的
双语例句：
1、I'll warm your bum if you don't come here this instant.
如果你不马上来，我就打你屁股了。
2、He's been handed a bum rap for handling stolen goods.
他被指控犯了莫须有的收赃罪。
3、They tried to bum quarters off us.
他们向我们讨二角五分的硬币。
4、Not one bum note was played.
一个音符都没弹错。
5、You are such a lazy bum that you even don’t wash your under wear.
懒鬼，自己的内衣都不洗！
6、The bum grapped the money and made a beeline for the nearest shop.
这个流浪汉紧紧攫着钱，抄近路直奔向最近的商店。
