问题描述： be puzzled by与be puzzled over有什么区别?用法如何? 1个回答 分类：英语 2014-10-26 问题解答： 我来补答 e puzzled by 为什么所困惑 he was puzzled by this question .他对这道题目困惑.be puzzled over 对.苦苦思考.he was puzzled over this question.他正在思考这个题目. 展开全文阅读
