"Proust had his apartment soundproofed"
"a soundproof room"
以上来源于: WordNet
Solutions to noise pollution include adding insulation and sound-proofing to doors, walls, and ceilings;
解决噪音污染的办法包括：对门、墙体、天花板加装隔音材料；
'Also, the sound-proofing is really bad,' making it near-impossible to have a private phone conversation.
而且隔音很差，打个私人电话都不太可能。
Sound-proofing applied to the ceilings and walls or smooth absorbent surfaces alternate with raised surfaces for rendering optimal sound.
天花和墙面的不同位置分别使用隔音或吸音材料，以实现最佳的声音效果。
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