In vertebrates, the immune system provides a multiple defense against internal parasites.(在脊椎动物中，免疫系统提供了对体内寄生虫的多重防御。)
Despite anything the science of medicine may have achieved, the immune system is our main defence against disease.(不管医疗科学已取得了什么样的进步，免疫系统仍是我们抵抗疾病的主要防御手段。)
It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.(可能是雄性可以利用稀少的类胡萝卜素进行免疫防御和解毒，或者吸引雌性。)
"Encapsulation protects cells from getting killed by the immune system and would contain teratoma cells," says Weir.(“封装能保护细胞免遭免疫系统攻击，并且会含有畸胎瘤细胞。”Weir说。)
The objective is to study the impact of extra water on the immune system in mice.(目的是研究多余的水对老鼠免疫系统的影响。)
For example, social contact can boost the development of the brain and immune system, leading to better health and less chance of depression later in life.(例如，社交可以促进大脑和免疫系统的发育，使人体更健康，并降低负面情绪出现的几率。)
Many doctors and researchers believe that loneliness harms the immune system, making us more vulnerable to a range of minor and major illnesses.(许多医生和研究人员认为，孤独会损害免疫系统，使我们更容易患上一系列轻微和重大疾病。)
My research focus is on what happens to our immune system as we age.(我的研究重点是随着年龄的增长，我们的免疫系统会发生什么变化。)
The job of the immune system is to fight infections.(免疫系统的工作就是对抗感染。)
Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems.(那些更容易感染疾病和寄生虫的男性将不得不使用他们的类胡萝卜素来增强他们的免疫系统。)
