| 单词 | rocket science |
| 释义 | rocket sciencenoun : the science of designing or building rockets also : something that is very difficult to learn or understand The job is challenging, but it's not exactly rocket science. |
| 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。