英语词汇问题:found和found out的区别是什么?比如Have you found your lost book

英语词汇问题:found和found out的区别是什么?比如Have you found your lost book found和found out的区别 LOST BOOK FOUND怎么样 have you found out __ 英语you are lucky to have found your lost money found out和found的意思分别是什么,它们有什么区别呀 Have you found your pen( have you found your book?怎么改为被动句? 合并成含定语从句的复合句 have you found the book?you lost it last week Lost&Found You found out right book,that,is,the,found,case,lost,your