【catchup】catchup与catchupwith可以的话各自造个句子.我对比下意思.

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【答案】 catch up 和 catch up with都是赶上的意思（由其指功课、进度）
　　catch up with 后面可以接人就是赶上某某人的意思
　　catch up:
　　If you miss a lot of classes,it's very difficult to catch up.
　　catch up with:
　　At the moment our technology is more advanced,but other countries are catching up with us.
　　例句均摘自朗文字典