How it knows this is an implementation detail.

如何知道这种信息是实现细节。

youdao

No one knows for sure who gave it this name in the eighteen thirties.

VOA: special.2010.03.21

We all have our version of trying to wrestle with this: if God knows what you're going to do tomorrow, to what extent does it make sense to say that what you do tomorrow you do freely?

我们都有自己试图解决这个问题的方式：,如果上帝压根儿就知道我们明天要做什么，那么，说着明天会自由的从事自己想做的事情,究竟又有什么意义呢？

耶鲁公开课 - 弥尔顿课程节选

One consideration in all of this is that this is a very young field and nobody knows how to do it yet.

这里的一个问题便是,这还是一个新兴的领域,没有人知道该怎样进行研究

耶鲁公开课 - 心理学导论课程节选

This may be why the company is so eager to take its smartphone competitors to court: because it knows that this is the area in which it is most vulnerable.

FORBES: How Apple Can Win Its Patent War Against Samsung

"If the body knows how to do this for the trachea, maybe it knows how to do this for other organs, too, " said David Green, president of Harvard Bioscience Inc.

WSJ: Scientists Implant Lab-Made Trachea Into Toddler

Google knows this and knows it can embed a mobile banking chip of its own in many of its Android-sponsored handsets or it can ask Motorola, the company it has bought awaiting DOJ approval, to build its phones with the necessary separate Google Wallet microchip to enable fully secure mobile banking.

FORBES: Emily Litella Meets Google Wallet