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laboratory
mastery UK /ləˈbɒɹətɹi/ US /ˈlæb(ə)ɹəˌtɔɹi/noun
card 1 of 10 · fill in the blank
The _____ results confirmed the presence of lead in the water.
card 1 of 10 · fill in the blank
The _____ results confirmed the presence of lead in the water.