VOA慢速英语:美国批准针对罕见致盲病的基因疗法

clone - n. a plant or animal that is grown from one cell of its parent and that has exactly the same genes as its parent

dots - n. small round marks

gene therapy - n. a way of treating some disorders and diseases that usually involves replacing bad copies of genes with other genes

immune - adj. not capable of being affected by a disease

inherit - v. to have (a characteristic, disease, etc.) because of the genes that you get from your parents when you are born

leukemia - n. a very serious disease in which the body forms too many white blood cells

metabolic - adj. the chemical processes by which a plant or an animal uses food, water, etc., to grow and heal and to make energy

mutation - n. a change in the genes of a plant or animal that causes physical characteristics that are different from what is normal

surgery - n. medical treatment in which a doctor cuts into someone's body in order to repair or remove damaged or diseased parts

twinkle - v. a quick, unsteady movement of light

opportunity - n. an amount of time or a situation in which something can be done

deliver - v. to take (something) to a person or place