Don't think of it as a specific box into which we're putting things; think of it as a link to a value.

别把它想做是,我们放东西的一个箱子;,把它当做是一个指向值的链接。

麻省理工公开课 - 计算机科学及编程导论课程节选

That statement says, get the value of x, which is this link, and give z a pointer to the same place.

这个声明的意思是，取得x的值，也就是连接指向的值，然后给z赋予一个指向同样位置的指针。

麻省理工公开课 - 计算机科学及编程导论课程节选