| 释义 |
A weak immune system causes increased susceptibility to disease.虚弱的免疫系统会导致感染疾病的概率升高。As they shorten, cells become more prone to disease and death.细胞变小后就会更容易感染疾病，也更容易死亡。A weak immune system increases your susceptibility to disease.虚弱的免疫系统会增加你感染疾病的概率。 |