单词	protoconule
释义	protoconule noun pro·​to·​conule ¦prōt(ˌ)ō+ : the anterior intermediate cusp between protocone and paracone of an upper molar Word History Etymology protocone + -ule
随便看	op cit op-ed opacate opacified opacifier opacifiers opacifies opacifying opacimeter opacities opacity opacous opah opahs opakapaka opal opal blue opal glass opal gray opal lamp opal matrix opalesce opalesced opalescence opalescences

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。