I'll knock your block off, you big stiff! You're a bum!
小心我揍你,你这个死家伙,你简直就是一个懒蛋!
Oh, I mean it is, but I also got a bum knee!
哦, 我的意思就是那样, 但是我膝盖一样有问题!
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.
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