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	protreptics protriaene protrochula protrudable protrude protruded protrudent protrudes protruding protrusible protrusile protrusility protrusion protrusions protrusive protrusively protrusiveness protrusivenesses protuberance protuberances protuberancies protuberancy protuberant protuberantly protuberate

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。