单词	preumbonal
释义	preumbonal adjective pre·​umbonal ¦prē+ : situated before the umbones of a bivalve shell Word History Etymology pre- + umbonal
随便看	Ephydatia ephydrid Ephydridae ephyra ephyrae ephyras ephyrula ephyrulae epi epi curve epi- epiandrum epibasal epibasidium epibatholithic epibenthos epibenthoses epibiont epibiotic epiblast epiblastic epiblasts epiblem epiblema epibole

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。