Down's syndrome (noun) - a medical condition, caused by a fault with one chromosome, in which a person is born with particular physical characteristics and a mental ability that is below average - ดาวน์ซินโดรม
Down's syndrome (noun) - a medical condition, caused by a fault with one chromosome, in which a person is born with particular physical characteristics and a mental ability that is below average - ดาวน์ซินโดรม