Tuberous sclerosis is a rare genetic disorder characterized by a triad of signs: seizures, mental retardation, and small benign facial skin tumors (angiofibromas).是什么意思_Tuberous sclerosis is a rare genetic disorder characterized by a triad of signs: seizures, mental retardation, and small benign facial skin tumors (angiofibromas).在线翻译_英语_读音_用法_例句