someone would not dream of doing something
someone would never do something, esp. because it would be wrong to do it:
When I was your age, my parents wouldn't have dreamed of letting me stay out until 10:00 at night.
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。