单词	Accra copal
释义	Accra copal noun : a hard resin obtained from certain trees in the coastal forests of western Africa and used in varnishes Word History First Known Use 1863, in the meaning defined above
随便看	center down center draw center drill center field center fielder center forward center gauge center halfback center ice center jam center jump center of action center of area center of attention center of buoyancy center of curvature center of displacement center of effort center of excellence center of figure center of flotation center of gravity center of inversion center of mass center of origin

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。