have been through the mill idiom informal
经历了许多问题（或困难）
to have had a lot of problems or difficulties
Many people who have been divorced have been through the mill psychologically. 许多离婚的人都经历了大量的心理折磨。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。