名词 bum:

1. a person who is deemed to be despicable or contemptible

2. a disreputable vagrant

3. person who does no work

4. the fleshy part of the human body that you sit on

bumn.流浪汉；游荡者；懒鬼n.<俚>屁股n.狂欢adj.无价值的；残废的；不合理的vt.使失望vt.乞求vi.乞讨；游荡bumbon.羼入糖酒的 punch

1. He had been bumming around the park all day.
   他在公园里荡了一整天了。
2. Our work is just bumming along.
   我们的工作进展顺当。