1、Huntington's disease is a hereditary disorder that affects the nervous system.
亨廷顿病是一种影响神经系统的遗传性疾病。
2、His father and grandfather both had diabetes, so he is at risk of developing the hereditary condition.
他的父亲和祖父都患有糖尿病，所以他有可能患上这种遗传性疾病。