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	meekest meeklier meekliest meekly meekness meeknesses meemies meen meer meered meerestones meering meerkat meerkats meers meerschaum meerschaums Meerut Meerwein-Ponndorf reaction meet meet and greet meet and greets meet cute meet cutes meet expectations

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