VOA慢速英语:移民活动家拒绝DNA测试

adopt - v. to take a child of other parents legally as your own child

certify - v. to say officially that something is true, correct, or genuine

DNA - n. a substance that carries genetic information in the cells of plants and animals — often used before another noun

migrant - n. a person who goes from one place to another especially to find work

network - n. a system of lines, wires, etc., that are connected to each other

sibling - n.a brother or sister