We talked about attenuating in the laboratory, using cell culture techniques and what we know about mutating viruses.

我们讲过实验室中,利用细胞培养技术培养减毒疫苗,以及我们所了解的减毒病毒

耶鲁公开课 - 生物医学工程探索课程节选

Helper cells don't become cytotoxic cells but they help B cells become antigen producing - antibody producing cells.

附助细胞不会成为细胞毒细胞,它们帮助B细胞成为抗体分泌细胞

耶鲁公开课 - 生物医学工程探索课程节选

Here's where the intelligence of the immune system comes in, is that these cytotoxic T-cells that are generated only kill cells that have this signal on it.

免疫系统的聪明之处就在此,这些细胞毒T细胞,只能杀死具有特殊标记信号的细胞

耶鲁公开课 - 生物医学工程探索课程节选