| 单词 | proving ground |
| 释义 | proving groundˈproving ground noun [countable] 1a place or situation in which something new is tried for the first time or tested2an area for scientific testing, especially of vehicles |
| 随便看 |
英语词典包含48224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。