One of the results of that stimulation is that B-cells - a particular subset of B-cells - gets activated.
这种激活的结果之一就是,B细胞,一类特别的B细胞亚族被激活
What happens when they're activated is they start to reproduce, they make more and more, and more B-cells.
激活后,免疫细胞开始增殖,B细胞变得越来越多
They come from B-cells, they come from B-cells that are activated with a specific antigen.
抗体来自于B细胞,它们来自于被特别的抗原所激活的B细胞
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