Mister Hone says the records suggest that Tyrannosaurus rex was like many other predators.

VOA: special.2009.09.01

You begin to realize that all of these big seemingly complicated pieces of software in websites that you use, if you just hone in on little pieces of them at a time and you realize oh I can do that and oh I can do that.

你开始意识到,你所登陆的网站上这些大而复杂的软件,如果你只对其中的一小块代码进行研究,你就会发现,哦，我也可以来做这个。

哈佛公开课 - 计算机科学课程节选

and hone in.

然后集中在那儿。

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But,Mister Hone says the records seem to suggest that those were few.

VOA: special.2009.09.01

So now, let's recurse together, let's dive in and hone in on what T of 8 is.

下面用递归的方法继续,看看T是多少。

哈佛公开课 - 计算机科学课程节选