A rare congenital disorder of childhood that is characterized by rapid onset of the physical changes typical of old age, usually resulting in death before the age of 20.是什么意思_A rare congenital disorder of childhood that is characterized by rapid onset of the physical changes typical of old age, usually resulting in death before the age of 20.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句