not/never in your wildest dreams
C2 used to say that something is better than anything you could imagine or hope for:
Never in my wildest dreams did I imagine that one day I would run a marathon.
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。