问题描述： 对弹钢琴感兴趣是用interest to do 还是 interest in doing 1个回答 分类：英语 2014-11-21 问题解答： 我来补答 两种表达法；都用doing,因为in是介词,后接动词-ingbe interested in playing the piano或：take an interest in playing the piano 展开全文阅读
