they've been banged up for something they didn't do.
他们因莫须有的罪名被关进监狱。
he banged up his knee.
他弄伤了膝盖。
See main entry:bang
英汉双解词典包含131075条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。