keep up with[英][ki:p ʌp wið][美][kip ʌp wɪð]
紧跟; 跟上， 不落人之后; 齐肩并进;
I can't keep up with all the changes in computer technology.
计算机技术的各种改进有些我已跟不上了。
How many of your old school friends do you keep up with?
你和中学时的老同学保持联系的有多少?
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