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

你红细胞集素决定了你血型。

Your red blood cells have specialized antigens on them, called agglutinogens, that activate antibodies that work by binding invading cells to each other, which causes coagulation, or the clumping of blood.

你红细胞有专门抗，叫做集素，它激活抗体，通过将入侵细胞相互结合来工作，从血，或者血液结块。

In the most important blood classification — the kind people are most familiar with — there are only two kind of agglutinogens, simply A and B. And your blood can either have one, or both, or neither of these molecules.

在最重要血液分类中，也就是人们最熟悉种类中，集素只有两种，简单地说，A 和 B。你血液中可以有一种，或者两种都有，或者两种分子都没有。