Think about this book, which required an outline before the first words were typed, or a building, which has blueprints drawn before the first concrete is poured.

• 就比如说这本书，哪些东西在写之前需要有一个大纲呢？再比如说一座建筑，哪些东西在第一注混泥土浇下去以前已经绘好了蓝图？