translation.en: So, if you’re designing an interaction between two people -- such as, I don’t know -- ordering food at a fast food joint or something, you need to be able to imagine how that experience might feel over a period of time.
translation.zh: 如果你要设计两个人之间的互动 例如，在快餐店点餐 或什么的，你要能想象 那个时间历程上经验的感觉。