And when it's weakened, those mutated cells are not recognized by your immune system.

免疫系统功能一旦降低，就识别不出发生突变的细胞了。

youdao

And when it's weakened, those mutated cells are not recognized by your immune system.

免疫系统功能一旦降低，就识别不出发生突变的细胞了。

youdao