单词	protograph
释义	protograph noun pro·​to·​graph ˈprōtəˌgraf : an original writing : holograph Word History Etymology prot- + -graph
随便看	32′ stop 360 360s 3D 3D printed 3D printer 3d printers 3D printing 3d-printed 3h 4-F 4-foot pitch 4-foot stop 4-H 4-h'er 4-her 40 400 401 401(k) 401k 411 4G 4WD 4x4

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。