This is systematic, step-by step learning.

这是有系统、按部就班的学习。

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Having these tools available is the first step. Learning when to use each of them is the second.

了解这些工具仅仅是第一步，知道什么时候使用它是第二步。

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In complex organisms like humans there's another step that we're still only learning about now.

在像人类这样的复杂有机体中,还有另一个我们至今仍未完全了解的步骤

耶鲁公开课 - 生物医学工程探索课程节选

Once you're doing this on your own, -- especially, for example, on exam 2, which is a ways down the road, you won't be able to look at those steps, so you need to make sure that you can go through them without looking at them, but for now we can look at them as we are actually learning how to draw the Lewis structures, and rather just go through them step-by-step, it's more interesting to do it with an example.

每当你要画一个路易斯结构的时候，特别是，比如，在第二次考试中，在不远的将来，你将看不到这张表，因此你需要确保自己在不看这张表,的情况下也能按照上面的流程来画，但是目前我们是可以看着这张表,来学习如何画路易斯结构的，而相比于一步一步地讲，通过例子来演示一下会更有意思。

麻省理工公开课 - 化学原理课程节选

The second step is learning everything we can that might have a bearing on the problem.

FORBES: The Pittsburgh Six: The Template for Innovation

It means people are talking about the issue, and that's the first step toward learning how to reasonably protect yourself.

CNN: The story

The president said the recently signed education overhaul, which Republicans and Democrats backed, emphasizes reading as a first step to learning, making sure teachers are properly trained and installing an "accountability system" to ensure children receive the education they need.

CNN: Bush calls education 'civil rights issue of our time'