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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