单词	protograph
释义	protograph noun pro·​to·​graph ˈprōtəˌgraf : an original writing : holograph Word History Etymology prot- + -graph
随便看	skycaps skycoach skydive skydived skydiver skydivers skydives skydiving skydivings skydove Skye Skye terrier skyed skyer skyers skyey skyful skyfull skyhook skyhook balloon skyhooks skyhoot skying skyish skyjack

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。