And because this is the 21st century and we would love to talk about the real world on its own terms, not in terms of line art or clip art that you so often see in textbooks, we go out and we take a picture of it.
因为这是21世纪， 我们喜欢以真实世界的表达方式来谈论真实的世界， 不是以你常在教科书上看到的线条艺术 或是插图艺术来表达。 我们出去应用，并给它照个相。