1·In this installment, I discuss one of the building blocks of functional programming: immutability.
在这一部分中，我讨论的是函数式编程的基石之一：不变性。
2·Of course, Git also satisfies standard VCS requirements such as immutability and accountability.
当然，Git也满足标准的VCS要求，比如不变性和问责制。
3·But I do think the notion of immutability is more hardwired into Fan via the notion of const types and const fields.
但我相信不变性的理念在Fan中通过const类型和cons t场相比而言更加深入。
4·Immutability is key to functional programming because it matches the goals of minimizing the parts that change, making it easier to reason about those parts.
不变性是函数式编程的关键，因为它与尽量减少变化部分的这一目标相一致，这使得对这些部分的推断更为容易一些。
5·Immutability means that once changes are committed to a repository, they are a permanent part of a project's historical record.
不变性表示将更改提交到存储库之后，它们就成为项目历史记录不变的一部分。
1·Farmers all over the world know the importance and immutability of the seasons.
全世界的农民们都明白季节的重要性和永恒性。
2·Farmers all over the world know that importance and immutability of the seasons.
世上的农民都知道季节的重要性和永恒性。
3·Farmers all over the world know the importance and immutability of the seasons. They know that there is a season to plant and a season to harvest; everything must be done in its own time.
全世界的农民们都明白季节的重要性和永恒性。他们知道在哪个季节播种，哪个季节收获，每件事都必须应时而做！