“人体的”用英语怎么说

人体的免疫系统是抵御疾病的主要屏障。The immune system is our main defence against disease.肾上腺分泌人体的大部分性激素.The adrenals produce a large per cent of a man's sex hormones.骨骼和肌肉是人体的组成部件.The bones and muscles are parts of the mechanism of ...