慢速英语:美国科学家首次成功克隆濒危动物黑足雪貂

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clone – v. to make an exact copy of a person, animal or plant

species – n. a group of animals or plants that are similar

conserve – v. to protect animals, plants and natural resources

diversity – n. a situation in which many different kinds of things or people are included in something

regenerate – v. form or create again