Do you need something to drink?

你需要喝点什么吗？

youdao

Do you need something else please?

请问需要购买其他商品吗？

youdao

Do you need something?

您需要什么么？

youdao

They say that you do not need to be extremely intelligent to understand something.

VOA: special.2010.06.27

You need to, if you want something to be printed out inside your code, you need to tell the machine to do that.

你需要，如果你想要,在代码中显示一些东西的话，你需要告诉机器这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

because you've already done it or you don't need to do something because you've already done it before.

因为你之前已经做过，或者你觉得因为之前做过就没有必要再做了。

I've already 课堂 - SpeakingMax英语口语达人

Do you need to know something about how they do business?

FORBES: Two Myths About R��sum��s

So do you think we need something like a sort of latterday Bretton Woods conference like we had towards the end of the last War, do we need to get nations together to make the playing field more even?

BBC: News | BREAKFAST WITH FROST | George Soros

The substance is this: you withdraw from those who need you to do something more important.

FORBES: The Final Lesson of Steve Jobs