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insulation

/ɪnsəleɪʃən/

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1 · noun

material that prevents heat, sound, or electricity from passing through

绝缘材料；隔热层

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Better insulation kept the house warm in winter.
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更好的隔热层让房子在冬天保持温暖。
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Pronunciation: /ɪnsəleɪʃən/

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