We need to know the exact time the incident occurred.

我们需要了解事情发生的确切时间。

《牛津词典》

We need skilled workers and technical know-how.

我们需要熟练工人和专业技术知识。

《牛津词典》

We need to know whether the crime had been premeditated.

我们需要知道犯罪是否有预谋。

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At least give us a chance, Mister Rockford." BENNY: " Yes,all we need is one good break,you know."

VOA: special.2009.03.09

We need to know not only what are the primitives, but how do we make things meaningful in that language.

我们不仅需要知道什么是基本类型，还要知道我们在那种语言中,怎样使其变得有意义。

麻省理工公开课 - 计算机科学及编程导论课程节选

Also, we need to know how much individual stocks are correlated with rm; we measure that by the regression coefficient.

我们必须清楚,有多少个股与市场总体收益率相关;,我们用回归系数，即β系数来表示。

耶鲁公开课 - 金融市场课程节选

But that is the thing we need to know before we make any legislative changes.

FORBES: File Sharers Buy More Music Than Non-File Sharers: Not Quite What The Report Says

"To be fair to the players and to us, we need to know where we stand, " he said.

BBC: Abbott 'optimistic' over targets

We need to know how much of a meltdown we were on the verge of having.

NPR: Reporters Analyze Wall Street's Downward Turn