We will be having a meeting to decide what to do.

我们将开会决定该做什么。

《柯林斯英汉双解大词典》

I can't decide what to do for my summer vacation.

我决定不了我暑假做什么。

youdao

I can't decide what to do about the party tomorrow.

明天就要聚会了，我不知道该怎么办。

youdao

Play it by ear also means to decide what to do at the last minute instead of making detailed plans.

VOA: special.2009.09.13

So one way that neurons, in particular, are able to communicate with other cells in the nervous system, share information, integrate information, decide what to do next is that they are physically connected to other different cells.

所以神经细胞之所以能够,与神经系统中其他细胞通讯,分享信息,整合信息,从而决定下一步该做什么,是由于不同细胞间,是彼此连接在一起的

耶鲁公开课 - 生物医学工程探索课程节选

So when you see her and when you decide what you're going to do for the evening,

所以当你见到她，想要决定今晚做点什么的时候，

Let me 课堂 - SpeakingMax英语口语达人

Miss Masterman said she would decide what to do with it once she saw it.

BBC: Pink Floyd house sold at auction for ?1.2m

To make it Brazil's triumph too he must decide what to do with it.

ECONOMIST: Brazil's presidential election

Decide what to do about the massive budget cuts to defense spending and other government programs.

FORBES: Fiscal Cliff: With Crisis Averted For Now, Investors Can Briefly Rejoice