Wondrously, scientists have found lately that the white blood cells in the human body's immune system can locate, attack, and exterminate particles harming our body. 令人啧啧称奇的是,科学家们最近发现,人类免疫系统内的白血球,能够寻找、攻击、以及歼灭会伤害我们身体的微粒。
...the extermination of hundreds of thousands of their brethren. …他们几十万同胞的灭绝。