Many large institutions keep this kind of data secret—or at least make it incredibly difficult to find.

许多大型机构都对这类数据保密，或者至少使其难以被找到。

youdao

Or, as Lucy puts it, creating an effective marketplace for this kind of data.

或者像露西做的那样，为了这种数据库建立一个有效的市场。

youdao

This kind of data is user specific and cannot be recreated by any other means.

此类数据不能采用其他任何手段重新创建。

youdao

And the problem is, that we want to build this abstract data type, but we'd like to basically know what kind of object is it, and what functions actually belong to it, how do we use them?

然后我对它们运行了这个方法，就是这一小段代码这个方法,这有意义么？,当然没有了，对不对？,因为你知道，当你把两个极坐标，表示的点进行相加运算的时候？

麻省理工公开课 - 计算机科学及编程导论课程节选

However, not all of the countries compile this kind of data or make it available.

BBC: How it's worked out

LinkedIn claim that its Privacy Policy and User Agreement covered this kind of data transmission.

FORBES: LinkedIn iOS App Grabs Names, Emails And Notes From Your Calendar

Now my cell phone is programmed to remember this kind of data for me.

FORBES: My Head is in the Cloud