You need to work hard to keep ahead.

你要努力才能保持领先优势。

《牛津词典》

If you want to make money or build your business, you need to work hard at it.

如果你想赚钱又或者开创自己的生意，你需要努力地为之工作。

youdao

If you want to retire young and retire rich, you need to work hard for the right kind of income.

如果你想要早早退休并且成为富人，你需要为正确的收入努力工作。

youdao

"We need leaders who are committed to moving New Jersey forward, (Applause) and that is John Corzine, which is why you need to work hard on Tuesday!" A Republican sweep will be seen by some as a rejection of President Obama's policies and could embolden Republican efforts to win congressional seats in 2010.

VOA: standard.2009.11.02

You need to stop making me work so hard.

你不要再让我这么拼命地工作了。

so that 实战 - SpeakingMax英语口语达人

"You will need to work hard to explain how your plan won't create a new generation of failing schools", he told Mr Gove.

BBC: Gove unveils package of education reforms

If you want to get a job as a programmer and you are self-taught, then you will need to work extra hard and have great examples to showcase your skills.

FORBES: How To Get Into the Tech Industry

Knock on some doors. (Applause.) Volunteer. (Applause.) We need you to work hard.

WHITEHOUSE: The White House