单词	pterotheca
释义	pterotheca noun ptero·​theca ¦terə+ : the part of the pupa case that covers the rudimentary wing of an insect Word History Etymology New Latin, from pter- + theca
随便看	ramins ramis Ramism ramisms ramist ramists ramjet ramjet engine ramjets Ramkokamekra ramkokamekras ramline rammack rammans rammed rammel rammelsbergite rammer rammers rammier rammies rammiest ramming ramming effect rammish

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。