问题描述: I don't have ping-pong balls后面的ball加s 1个回答 分类:英语 2014-11-14 问题解答: 我来补答 ping-pong balls ball加s 是对的Do you have any ping-pong balls?你有乒乓球吗?I don't have ping-pong balls我没有乒乓球 展开全文阅读