Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
pediatric - adj. of or relating to the medical care or illnesses of children
neurologist - n. a doctor who studies the nervous system and the diseases that affect it
mutation - n. a change in the genes of a plant or animal that causes physical characteristics that are different from what is normal
seizure - n. an abnormal state in which you become unconscious and your body moves in an uncontrolled and violent way
