What else do you need ?

你还需要别的什么东西吗？

youdao

What else do you need?

还要买什么吗？

youdao

What else do you need? We need some flowers and a vase.

其他你们需要什么？我们需要一些花和一个花瓶。

youdao

What else do you need to know?

你还需要知道什么？

麻省理工公开课 - 热力学与动力学课程节选

In another situation, you can use the "I need" pattern to express what somebody else needs to do.

在另一种语境中，你也可以用“I need”句型来表达其他人做某事的必要。

I need 课堂 - SpeakingMax英语口语达人

What else do you need? It's enough.

还需要什么呢，足够了。

麻省理工公开课 - 固态化学导论课程节选

What else do you need to know?

FORBES: A Beginner's Guide To Taxes: Do I Need To Hire A Tax Preparer Or Can I Do My Return Myself?

What else do you really need?

FORBES: Magazine Article

What else do you think we need to do?

WSJ: Manager Took Down Best Friend in Insider-Trading Probe