| 单词 | not know one's ass from one's elbow |
| 释义 | not know one's ass from one's elbowidiom chiefly US, informal + impolite : to know nothing : to be stupid Don't take his word for it—he doesn't know his ass from his elbow. |
| 随便看 |
|
英语词典包含469781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。