| 单词 | unheard-of |
| 释义 | unˈheard-ofadj not known; never having happened before 不为人知的；前所未有的 un·heard-of /ʌn`hɜd ɑv; ʌnˈhɜːd ɒv/adjsomething that is unheard-of has never happened before and seems surprising 闻所未闻的，空前的:◇women airline pilots were practically unheard-of twenty years ago. 二十年前，女性机师几乎闻所未闻。 |
| 随便看 |
英汉双解词典收录171353条英汉汉英双解翻译词条，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。