Work hard, study hard.

努力工作，努力学习。

youdao

I will be more strict with myself, work hard, study hard, develop strengths, correct weaknesses, and forge ahead.

今后我将更严格要求自己，努力工作，刻苦学习，发扬优点，改正缺点，开拓前进。

youdao

and just, you know, work hard and study, do your homework, eat well too, I'm sure that helps

所以，我的建议是，努力学习，认真完成作业，
同时也好好吃饭，这真的很重要哦。

如果是在考虑留学 - SpeakingMax英语口语达人

But also to teach him discipline and to work hard and to study hard

但还要教会他纪律、努力工作和好好学习，

要成为好爸爸 - SpeakingMax英语口语达人

We couldn't afford to tell those kids on the West Side or the South Side, if you work hard, if you study hard, if you're hitting the books, that you're going to be able to afford to go to college.

WHITEHOUSE: Remarks by the President at a DNC Event

And we expect people to earn it -- study hard, work hard for it.

WHITEHOUSE: President Obama Speaks on the 2013 Budget

We work and we hustle, you study hard to get your degree -- because you believe in success and individual initiative.

WHITEHOUSE: President Obama Speaks on Student Loan Interest Rates in Colorado | The White House