I have a lot of work to catch up on.

我有许多工作要补做。

《牛津词典》

No matter how hard I try I cannot seem to catch up on all the bills.

不管我怎么努力，我好像总也无法付清所有的账单。

《柯林斯英汉双解大词典》

Summer is the perfect time to catch up on the new books you meant to read.

夏天是补看想读的新书的最佳时间。

《柯林斯英汉双解大词典》

They worked quickly to catch up. Less than a year later, on October first,nineteen fifty-eight, the National Aeronautic and Space Administration,or NASA, began operations.

VOA: special.2010.08.20

I'm really tired and I have a lot of school work to catch up on.

我真是累坏了，我还有许多落下的功课得补起来。

I'd like 实战 - SpeakingMax英语口语达人

They do so mainly to catch up on the news, the sports results and the weather.

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And that's not all, you've still got your history, and your maths to catch up on!

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At least we'll be able to catch up on Gossip Girl in the process, we suppose!

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