正文

VOA慢速英语:Moderna第二种有希望的新冠疫苗

2020-11-17来源:和谐英语

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Words in This Story

authorization - n. permission or official approval

reassuring - adj. making someone feel less afraid or doubtful

pandemic - n. an occurrence in which a disease spreads very quickly and affects a large number of people throughout the world

outbreak - n. a sudden start or increase of disease

phase - n. a step in the process

advantage - n. a good or desirable quality or feature