After missing a term through illness he had to work hard to catch up with the others.

他因病休学一学期，不得不努力学习好赶上别的同学。

《牛津词典》

She has to work hard to catch up with others.

为了赶上别人，她不得不努力学习。

youdao

I have to work hard to catch up with the other students.

要想赶上其他同学，我得特别努力才行。

youdao

It wasn't the first time she'd had to work hard to catch up.

WSJ: Culture City: One Small Stumble on the Stage, One Giant Step to Stardom

Given such misinformation, China will need to work hard to catch up with one of the world's biggest medical problems.

ECONOMIST: A ��state secret�� is revealed

One of these was Liz Locheads' translation of Moliers' Tartuffe and although it was hard work (especially having to socialise after performances and catch up with other late night productions, which was part of it all) it proved an exhausting three week run, but definitely an experience all performers should have tried at least once in their lifetime.

BBC: NEWS | Entertainment | Tiaras and tantrums at Edinburgh Fringe