单词	opto-
释义	opto- combining form 1 : vision optometry 2 : optic and optoelectronics Word History Etymology Greek optos, verbal of opsesthai — more at optic
随便看	aruacs aruana aruas Aruba arubae aruban arubans arubas arugolas arugula arugulas aruhe arui aruies aruis aruli aruloes arulos arum arum family arum lily arums Arunachal Pradesh Aruncus Arundel

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。