Which agglutinogens you have on your erythrocytes defines your blood type.

你红细胞上的凝集素决定了你的血型。

Can you define these two types of change and share why addressing both is so helpful to teams?

您能否定义这两种类型的变革并分享为什么解决这两类变革对团队如此有帮助？

Classes are extremely important in programming and they're not specific to python, in fact, a lot of other programming languages do support the notion of classes. We use classes to define new types.

类在编程中非常重要，它们并不特定于 python，事实上，许多其他编程语言都支持类的概念。我们使用类来定义新类型。

Twenty years ago, the Urban Land Institute defined the two types of cities that dominated the US landscape: smaller cities that operated around standard 9-5 business hours and large metropolitan areas that ran all 24 hours of the day.

20 年前，美国城市土地协会定义了美国国土上两种主流的城市类型：执行标准的朝九晚五 (8 小时) 商业时间的小城市和全天 24 小时不停歇的大城市。