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To keep the pond healthy, we installed an aerator that continuously bubbles oxygen through the water.
See correct answer
To keep the pond healthy, we installed an aerator that continuously bubbles oxygen through the water.
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Related words
aerator
Noun
Japanese Meaning
空気を混入する装置、特に土壌や液体に対して利用される / ミネラルウォーターをガスで充填し、炭酸飲料を作るための装置
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