导读：keep up with 动词词组，跟得上，不落后的意思。You are walking too fast.I cannot keep up with you.你走得太快了，我跟不上你。We have to work hard to keep up with the pace of the age.我们必须努力，才能跟上时代的脚步。

1、意思上的区别 keep up with：紧跟；跟上，不落人之后；齐肩并进。 catch up with：赶上；追上；和…算旧账；使…最终尝到苦果。 2、用法上的区别 keep up with ：是有关于你学业／工作的水平而言。（褒义） catch up with：是有类似于追上的意思。（中性）（或者有自贬意思） 例句： ①、keep up with She was skipping to keep up with him. 她连蹦带跳地走着，好跟上他的步伐。 She began to walk faster, but he lengthened his stride to keep up with her 她开始加快步子，但他加大了步幅跟着她。 ②、catch up with I couldn't catch up with him. 我撵不上他。 There's still time to catch up with them. 还有时间追上他们。 We'll do our best to catch up with the advanced world levels. 我们将努力赶上世界先进水平。 扩展资料同义词解析： keep pace with v.跟上；并驾齐驱；赶上。 You walk too fast for me to keep pace with you. 你走的太快，我跟不上。 provided by jukuu I cannot keep pace with you at this rate. Go slower. 以这种速度走我是跟不上你的，走慢些吧。 We must keep pace with the new development of modern scientific researches. 我们必须跟上现代科学研究的新发展。