keep up (with)
基本解释跟上,赶上,保持,不落在后面,及时了解(情况)
网络释义
1)keep up (with),跟上;赶上;保持;不落在后面;及时了解(情况)2)Fall behind,落后，跟不上3)To fail to keep up a pace;lag behind.,落后跟不上步伐;落后4)be abreast of with,与￥并进;跟上;不落后于5)To fail to keep up a pace; straggle.,跟不上;落伍6)I made it!,赶上了!