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慢速英语:世界上最古老的DNA发现于百万年前的猛犸象
日期:2021-02-23
Words in This Story

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

sequence – v. determine the order of chemical building blocks

degrade – v. damage the quality or condition of something

fossil – n. part of an animal or plant from thousands of year ago, preserved in rock


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