单词	air defense
释义	air defense noun : the means, techniques, and organizations devoted to preventing or minimizing the effects of attack by enemy aircraft or guided missiles Word History First Known Use 1916, in the meaning defined above
随便看	subscribing to subscribings subscript subscripted subscripter subscriptest subscripting subscription subscription book subscription edition subscription library subscription list subscription TV subscription warrant subscriptionist subscriptions subscripts subsea subsecretaries subsecretary subsect subsection subsections subsector subsectors

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。