I remember as a child and sometimes see the worries on her face and try to console her.

我记得小时候,看到她焦虑的神情,试着去安慰她。

普林斯顿公开课 - 人性课程节选

So this is a handy way of being able to see, what are in fact the methods that are available if I don't happen to remember them, and want to go back to them.

因此这是一种简便的方式，来看看如果我不记得,可用的方法了,应如何去取得他们。

麻省理工公开课 - 计算机科学及编程导论课程节选