Note that there is a general structure to all of these questions.

请注意，所有这些问题都有一个通用的结构。

In the beginning, let's talk about the general structure of this task.

首先让我们讨论一下这个题的整体结构。

So, the general structure of a knock, knock joke goes like this: " Knock, knock."

所以，一个“敲敲”笑话的总体结构是这样的：“敲敲”。

They're continually telling us that our specific case, might be unique but that the general structure, is common.

他们不断地告诉我们我们，或许各自有各自的不幸，但纵观全局，家家都有本难念的经。