慢速英语:在新冠病毒爆发期间更难保护的非洲野生动物

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tourism – n. the business of visiting a place for pleasure

poach – v. to catch and kill animals without permission on someone else's land

alert – n. quick to see, understand or act in a particular situation

critically – adv. in a way that is serious or bad

endangered – adj. in danger of being harmed or lost

revenue – n. the profits made from a business