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impaired – adj. something that is weaker or worse than normal
re-create– v. to make (something from the past) exist or seem to exist again : to create (something) again
reproduction – n. something that is made to look exactly like an original
ridge – n. a raised part or area on the surface of something
depression – n. an area on a surface that is lower than other parts : a low spot
entangled – adj. something caught and twisted into something else
source – n. someone or something that provides what is wanted or needed
