单词 | rocket booster |
释义 | rocket boosterchiefly Astronautics noun A booster in the form of a rocket; especially one used in launching a spacecraft. Origin1920s; earliest use found in Popular Science Monthly. |
随便看 |
英语词典包含243303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。