Writing a functional specification is at the very heart of agile development, because it lets you iterate rapidly over many possible designs before you write code.

写功能设计规格是敏捷开发中非常核心的一部分，因为它可以让您迅速地迭代许多可能的设计，然后再编写代码。

youdao

Had I said "highlighted in some way" rather than "displayed in gray," I would be running the risk of writing a worthless specification.

如果我说的是“以某种方式突出显示”而不是“以灰色显示”，那我将冒险写下无意义的规范。

youdao

The very act of writing a specification forces you to think through the design you thought you had in your head, and helps you see the flaws in it quickly so that you can iterate and try more designs.

写功能设计规格的行为强迫你通过设计去思考你之前在你的脑中的想法，并帮助你迅速地看出缺陷，让您可以重复和尝试更多的设计方案。

youdao