Meanwhile, the changes that happened in the interior of the system of immunity are one of the very important adaptation.
而发生在免疫系统内部的变化是适应过程中一个十分重要的组成部分。
Meanwhile, the changes that happened in the interior of the system of immunity are one of the very important adaptation.
而发生在免疫系统内部的变化是适应过程中一个十分重要的组成部分。
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