And if we experimentally know z what the ionization energy is, we actually have a way to find out what the z effective will be equal to.

我们实际上就有了一个办法,去找出有效的，等于多少,我们可以使用这里的方程。

麻省理工公开课 - 化学原理课程节选

And the only way that you can get it to work is to rent the software from them. You can't actually buy, you have to rent it from there.

顾客使用这产品的唯一办法就是,向他们租软件，不能买，只能租借。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

Because if I don't specify a name for this input, I have no way of actually referring to it in subsequent lines of code.

因为如果我不给这个输入定义一个名字，在随后的代码中,我就没有办法使用它。

哈佛公开课 - 计算机科学课程节选

In Week 2 we'll look at things like cryptography and functions and the tools that by which you begin to assemble solutions to problems; in Week 3 we'll introduce what are generally ; known as algorithms and data structures; mechanisms by which you can solve problems more efficiently, effectively.

第2周,我们学习加密技术及其功能,还会学到一些操作工具,通过这些工具的使用来收集解决问题的办法,第3周,我们将介绍;,算法和数据结构,以及可以更有效地解决问题的机制。

哈佛公开课 - 计算机科学课程节选