The engineers at the Massachusetts Institute of Technology have taken it a step further changing the actual composition of plants in order to get them to perform diverse, even unusual functions.

麻省理工学院的工程师们更进一步地改变了植物的实际成分，以使它们发挥不同寻常的功能。

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The approval process might be altered at any step without changing the business semantics of the process.

批准过程可以在任一步被修改而不改变这一过程的业务语义。

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But if changing our hearts and minds is the first critical step, we cannot stop there.

但是，如果我们只改变了思想和观念，那还只是关键的第一步，我们决不能停步于此。

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All right. If the derivative is small, it's not changing, maybe want to take a larger step, but let's not worry about that all right?

好，如果导数很小的话，函数就基本没什么变化,可能我们就想把步子迈大一点儿了,但是别为这个担心？

麻省理工公开课 - 计算机科学及编程导论课程节选

It may be less clear why a super-star woman would want to join a company with a checkered past, but it could be a career-changing step for Mayer.

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Then they took the unusual step of changing the main goal of the study.

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It also takes a decisive step in changing how insurance companies deal with the costs of health care.

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