问题描述: what often falls at the north pole but never hurt? 1个回答 分类:英语 2014-12-03 问题解答: 我来补答 Polaris;North Star祝你学习进步,更上一层楼! *^__^*不明白的再问哟,请及时采纳,多谢 展开全文阅读