问题描述： How long have you been skating?如果有知道的朋友顺便把答案写上哈~ 1个回答 分类：英语 2014-11-12 问题解答： 我来补答 你滑冰多久了?I have been skating since 3 years ago./ I have been skating for 3 years. 展开全文阅读
