amnesia
n. 健忘症，[内科] 记忆缺失
例句
People suffering from amnesia don't forget their general knowledge of objects.
患有失忆症的人不会忘记他们对物品的常识。
《柯林斯英汉双解大词典》
What are the reasons for childhood amnesia?
儿童患健忘症的原因有哪些？
It is called childhood amnesia and was first documented in 1893.
它被称为儿童健忘症，最早记录于1893年。
