B-21:beat up (blame oneself) 自责
A:Do you know Jim was beaten up on his way home yesterday?
A: 你知道吗?昨天吉姆在回家的路上被人打了一顿。
B: Really? What about his friends? They didn't stop the fight?
B: 真的吗?他的朋友们呢?他们没有阻止那场打斗吗?
A: They did nothing. They all went straight home and pretended to see nothing.
A: 他们什么也没做。他们都直接回家了,装作什么都没看见。