我们需要决定是改进现有的系统还是建立一个全新的系统。

We'll need to decide whether or not to improve the existing system or to build a completely new system.

youdao

现在，我们需要决定怎么完成这个作业。

Now we need to decide how we're going to do this assignment.

youdao

我们需要决定生气的理由是否合理，生气是否合适。

We also need to decide whether the anger is reasonable and whether or not it is appropriate.

youdao

So, there are a lot of decisions like that, that are getting made and a lot of them are gut level.

我们需要作出许多类似的决定，而这些决定都需要靠直觉来抉择。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

And that's what led us to a number of results to determine what quantities we even need to be looking at.

这就要求我们考察一系列结果,然后决定到底需要计算什么物理量,来找出。

麻省理工公开课 - 热力学与动力学课程节选

We didn't just need that n, not just the principle quantum number that we needed to discuss the energy, but we also need to talk about l and m, as we did in our clicker question up here.

我们不仅需要ｎ,不仅要这个可以,决定能量的主量子数，还需要ｍ和ｌ,就像我们做这道题这样。

麻省理工公开课 - 化学原理课程节选