问题描述： keep up with是什么意思? 1个回答 分类：英语 2014-10-29 问题解答： 我来补答 .跟上They walked so fast that I could not keep up with them.他们走得那么快,我没法跟上.2.和...保持联系She has kept up with some of her friends since her retirement.她退休后一直同一些朋友保持着联系. 展开全文阅读
