VOA慢速英语:关于新冠病毒新突变的研究告诉我们什么？

sample(s) – n. a small amount of something that gives you information about the thing it was taken from

pandemic – n. an occurrence in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

strain(s) – n. a group of closely related plants, animals or other organisms

outbreak – n. a sudden start or increase of fighting or disease

target – n. a place, thing, or person at which an attack is aimed

consequence(s) – n. something that happens as a result of a particular action or set of conditions

RNA – n. a substance in the cells of plants and animals that helps make proteins

oncology – n. the study and treatment of cancer and tumors