The first step uses a bit of influenza DNA to get the patient's immune system to begin fighting off the flu, and then the protection is given a "boost" some time later by the second step, which can be either another bit of DNA or a conventional flu vaccine.

VOA: standard.2010.07.21

Second step, hm. That also looks constant, you think? Oh but wait a minute. I'm accessing s.

第二步，恩，看起来也像常量,你认为呢？等等，我在进入这个数组。

麻省理工公开课 - 计算机科学及编程导论课程节选

you must step out to go to the bathroom for a second.

你还是得暂时离开一会儿，去一趟洗手间。

I will 课堂 - SpeakingMax英语口语达人

Aldrin was the second man to step foot on the moon during the Apollo 11 mission in July 1969.

VOA: standard.2010.04.15

So, our second step, as we go through our Lewis structure rules, is to figure out how many valence electrons we have in our entire molecule.

那么，我们的第二步，按照路易斯结构的规则，应该是判断在整个分子中,包含多少个价电子。

麻省理工公开课 - 化学原理课程节选

Second,he says, Lithuania is taking a step forward into the electricity market that he adds,will change the planned system of energy into a market based system.

VOA: standard.2010.01.01

We're checking the end test and incrementing, actually I was going to, I commented that out for a reason you'll see in a second, but I, normally I would keep this on, which would let me, at each step, see what it's doing. If I ran this, it would print out each step. Which is helping me make sure that it's incrementing the right way.

对不对？进行终结测试然后递增，实际上我要，因为某些你们,马上要明白的原因我把这里注释了，但是我通常会一直这么做，这样能让我看到每一步都做了什么，如果我运行这个程序，它会在每一步都,进行显示，这能帮助我让我确信程序是,在以正确的方式递增。

麻省理工公开课 - 计算机科学及编程导论课程节选

"He was telling me I need to finish second, and he was also telling me 'Don't step on the line,' and he was also telling me, 'Just try to stay close.' They shot the gun and I saw him for about maybe two or three seconds.

VOA: standard.2009.08.21

So the second step is you really need to innovating and evolving.

第二步，要不断创新,并在创新中发展。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

Second thing we've got to worry about is, what's a basic step? All right, if I bury a whole lot of computation inside of something, I can say, wow, this program, you know, runs in one step. Unfortunately, that one step calls the Oracle at Delphi and gets an answer back. Maybe not quite what you want.

我们需要担心的第二件事情就是，什么该作为一个基本的步骤呢？,如果我把一大堆的计算过程放到里面，我可以说，噢，这个程序你知道的，一步就完成了，不幸的是,这一步可能要靠预言家才能得到答案,这可能跟你想要的结果不太相同吧。

麻省理工公开课 - 计算机科学及编程导论课程节选