Most profoundly deaf people have speech that is very difficult to understand.
大多数深度失聪的人都有非常难以理解的语言。
-- Richard Masur 理查德·马苏尔
Most profoundly deaf people have speech that is very difficult to understand.
大多数深度失聪的人都有非常难以理解的语言。
-- Richard Masur 理查德·马苏尔