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- Her business this year is strictly on the bum. 我们今年的生意实在坏透了。
- You're just a good for nothing bum! 你一无是处！
- He spent several years on the bum. 他过了几年流浪生活。
- He gave me a bum steer on the last exam that I failed. 上次考试他给我指点错了，所以我没及格。
- Got a bum deal on my final grade for the course. 这门课我最后得了一个不公平的分数
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- bum membrane 烧伤涂膜剂
- Can I bum a cigarette (off you)? 我可以向你讨一根香烟吗?
- The penniless man had to bum a ride home. 那个身无分文的人只好乞求搭车回家。
- Bus driver giver us a bum steer. 公共汽车司机耍了我们。
- A thin skin or film, such as an organic membrane or a liquid film. 薄皮，薄膜如生物膜或液体膜等细薄的皮或膜
- The bum wore a tattered sweater and ripped pants. 那个流浪汉的运动衫和裤子破旧褴褛。
- A tightly stretched sheet or membrane, as on the head of a drum. 绷紧的薄膜状物挤压得很紧的平板或薄膜，如鼓面
- It was the old bum who'd been lying in the street. 眼前这位就是曾经团缩在街头的老流浪汉。
- Who am I gonna bum some money from next ? 我下一个该向谁借钱呢?
- A vibrating membrane in the ear helps to convey sounds to the brain. 耳膜的振动帮助声音传送到大脑。
- The bum was down and out on skid row. 这个流浪汉是贫民区的一个失业者。
- The membrane of a bat's wing is interdigital. 蝙蝠翅膀的膜是长在趾间的。
- A bronzed beach bum helped me find my lotion. 一位常去海滩、皮肤棕色的男青年帮我找到了我的防晒油。
- A man pinched her bum on the train so she hit him. 在火车上有人捏她屁股，她打了那人。
