There's nothing you need to do. You didn't do anything wrong.

VOA: standard.other

As you build these kinds of simulations, or anything like this, you need to think through whether things should be multiplicative or additive.

正如你建立各种仿真程序，或者类似的仿真程序时，你应该去想一想,他们应该是用加法还是用乘法。

麻省理工公开课 - 计算机科学及编程导论课程节选

What it's designed to do is to give you the resources you think you need so that I can focus on measuring whether you'velearned anything as opposed to whether you've remembered, memorized anything, OK, and of course, something to calculate with.

这样做的目的是给与你们,认为需要的资源，这样我就能专心于,衡量你们是否已经学到了什么,而不是你们是否记得了什么，背下了什么，还有，当然，要计算一下。

麻省理工公开课 - 固态化学导论课程节选

You don't need to say anything more about the phosphate because they all have the phosphate and every set of these is hooked together in the same way.

不需要再进一步说明磷酸基,因为两种核酸都含有磷酸基,并且以同样的方式相互连接

耶鲁公开课 - 生物医学工程探索课程节选

You don't need anything here.

你不需要任何东西。

麻省理工公开课 - 固态化学导论课程节选