正文

VOA慢速英语:新变异新冠病毒让专家们忧心忡忡

2021-01-21来源:和谐英语

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Words in This Story

mutate – v. to cause a change that creates a different quality in a living thing

variant – n. different in some way from others of the same kind

exponential – adj. very fast, to a very great degree

transmission – n. the process of something spreading, going from one place to another

evolution – n. the process by which living things change over time

pathologist – n. a part of medicine that seeks to find out causes