But the great advantage of the adaptive immune response is immunologic memory.

适应性免疫的益处在于免疫记忆。

The cells that are activated in the adaptive immune response undergo clonal expansion which means that they massively proliferate.

在适应性免疫中被激活过的细胞会进行克隆扩增，意味着它们会大量增殖。

Your immune system is like the military - with two main branches, the innate immune response and the adaptive immune response.

你的免疫系统就像一支军队，有两大阵营——固有免疫反应和适应性免疫反应。

The idea here is that SARS-CoV-2 may look enough like these other viruses that people who've had infections, especially recently, have a bit of a pre-loaded adaptive response that helps them clear the virus out faster.

这一观点则认为，新冠病毒可能看起来与其他病毒足够相似，针对感染人群，尤其是近期的感染人群来说，他们会有一些预先加载的适应性反应，从而帮助他们更快地清除病毒。

The trade off is that the adaptive response relies on cells being primed or activated, so they can fully differentiate into the right kind of fighter to kill that pathogen, and that can take a few weeks.

不过适应性免疫依赖于那些被活化过或激活过的细胞，这样它们才能充分地分化为合适种类的战士，来杀死病原体；通常要花费几周的时间。