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circus – n. a show involving a group of traveling performers and animals doing tricks for an audience
gradually – adv. happening slowly over time
era – n. a period of time during which particular events or progress in development are common
aquarium – n. a building people can visit to see water animals and plants
uncork – v. open a bottle by pulling out its cork
charity – n. organization whose purpose is to give money or food or provide help in other ways
exploit – v. to use (someone or something) in a way that helps you unfairly
circumstance – n. a fact or event that makes a situation the way it is
