慢速英语:Small Organisms in Deep Sea Rocks Eat Methane

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gas – n. any substance that is not solid or liquid

byproduct – n. a secondary product made in the manufacture of something else

atmosphere – n. the gases surrounding any star or planet

trap – v. to catch or be caught by being tricked; to be unable to move or escape

deep – adj. going far down; a long way from top to bottom

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