VOA慢速英语:美国西部发现十种被认为已绝迹的苹果

conservancy – n. a group concerned with the protection of nature or wildlife

botanist – n. A scientist who is a specialist in plant biology

luck of the draw – expression the result of chance instead of something one can control

update – v. to make something more modern or up to date

fair – n. a show or event often used to advertise products

detective – n. a person whose job is to investigate and solve crimes

bill – n. an amount of money owed for services or goods purchased