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	bed wetter bed-and-break bed-and-breakfast bed-and-breakfasts bed-curtain bed-ground bed-hop bed-hopped bed-hopping bed-hops bed-share bed-shared bed-shares bed-sharing bed-sit bed-sits bed-sitter bed-sitters bed-sitting room bed-wetter bed-wetting beda bedabble bedabbled bedabbles

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。