单词	tetracovalent
释义	tetracovalent adjective tet·​ra·​covalent : sharing four covalent bonds with other atoms or characterized by such sharing tetracovalent nitrogen Word History Etymology tetra- + covalent
随便看	ducked out ducker duckers ducket duckfeet duckfoot duckfooted duckfoots duckie duckier duckies duckiest ducking ducking out ducking stool duckings ducklet duckling ducklings duckmole duckpin duckpins ducks ducks and drakes ducks out

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。