N-UNCOUNT 多发性硬化症(神经系统的严重疾病，患者会逐渐衰弱，有时影响视觉和言语能力) Multiple sclerosis is a serious disease of the nervous system, which gradually makes a person weaker, and sometimes affects their sight or speech. The abbreviation MS is also used. 多发性硬化症(神经系统的严重疾病，患者会逐渐衰弱，有时影响视觉和言语能力)