But they say the work will make it possible to safely double the number of visitors permitted inside.

VOA: special.2009.06.29

So supposed that the list is not of size 8, let's make it slightly more interesting and double it.

假如列表的大小不是，为了更有趣，使其加倍。

哈佛公开课 - 计算机科学课程节选

Now I'm putting count in double quotes, not to make it a string, but to say, this is count generically. It could be counting one by one through the integers, it could also be taking a collection of data and going through them one by one. It could be doing counting in some other mechanism.

现在我把count用双引号标起来，不是说把它命名为一个字符串，而是说，这是一个通用的计数器,它可能是每一次减1的整数,也可能是拿一个集合的数据然后,一个一个的访问它们,也可能是以某种机制来计数。

麻省理工公开课 - 计算机科学及编程导论课程节选