And then he writes a set of variations.

接下来他写了一系列的变奏。

So when a developer writes a program, they could write down a set of specifications.

所以当一个开发者编写程序时，他们能编写出一套技术规范。

But why write a novel set in the future when your credentials are perfect for a historical novel?

但是，既然你的资历很适合写历史小说，为什么还要写一部以未来为背景的小说？

Shakespeare wrote, famously, a whole set of sonnets.

莎士比亚著名地写了一整套十四行诗。

Thanks to Isaac Newton, we can write a set of equations to describe the gravitational force acting between bodies.

感谢艾萨克·牛顿，我们可以写出一组方程来描述物体之间的引力。