It actually lets you see how to get access to that pointer so you know what you're referring to.

怎么来取得指针,以得知在对什么进行操作,但是这是个简单的设计决定。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'd like you to keep in mind that these two categories of purposes, both the explicate and the implicit, are something that we need to be responsible for whatever we do as designers of educational situations.

我希望你们记住,这两种教育目标，即表层目标和深层目标，是我们在对教育情境,进行设计时,必须考虑到的内容。

麻省理工公开课 - 媒体、教育、市场课程节选