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	umbrageously umbrageousness umbrageousnesses umbrages umbraging umbral umbral symbol umbras umbrated umbratic umbratical umbratile umbre umbrella umbrella ant umbrella bird umbrella bush umbrella catalpa umbrella cockatoo umbrella fern umbrella grass umbrella leaf umbrella palm umbrella patent umbrella pine

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。