Laurence-Moon syndrome is a rare hereditary condition associated with retinitis pigmentosa, spastic paraplegia, hypogonadism and mental retardation.是什么意思_Laurence-Moon syndrome is a rare hereditary condition associated with retinitis pigmentosa, spastic paraplegia, hypogonadism and mental retardation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句