单词	book lung
释义	book lung noun : a saccular breathing organ in many arachnids containing thin folds of membrane arranged like the leaves of a book Word History First Known Use 1881, in the meaning defined above Medical Definition book lung noun ˈbu̇k-  : a saccular breathing organ in many arachnids containing thin folds of membrane arranged like the leaves of a book
随便看	beastlies beastliest beastlily beastliness beastlinesses beastly beastlyes beastlys beastman beastmen beasts beat beat (down) beat (in) doula doulas doum doum palm douma doumas Doumer Doumergue doums doundaké doundaké bark

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。