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pandemic – n. an outbreak of a disease that occurs over a wide geographic area and affects an exceptionally high proportion of the population
species – n. a group of animals or plants that are similar and can produce young animals or plants
bet – v. to risk losing something when you try to do or achieve something
sufficient – adj. having or providing as much as is needed
gear – n. supplies, tools, or clothes needed for a special purpose
sustainable – adj. involving methods that do not completely use up or destroy natural resources
entanglement – n. something that entangles, confuses, or ensnares
