单词	retroreflection
释义	retroreflection noun ret·​ro·​re·​flec·​tion ˌre-trō-ri-ˈflek-shən  : the action or use of a retroreflector retroreflective ˌre-trō-ri-ˈflek-tiv  adjective Word History First Known Use circa 1965, in the meaning defined above
随便看	rotational rotational fault rotational inertia rotational loss rotational motion rotational quantum number rotational specific heat rotational spectrum rotational vector rotationally rotations rotative rotatively rotator rotator cuff rotatores Rotatoria rotatorian rotators rotatory rotatory dispersion rotatory reflection axis rotavated rotavates rotavating

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。