soundproof floor

例句：

1. 1. The engineer designed a soundproof floor for the concert hall to reduce noise pollution.
   工程师为音乐厅设计了隔音地板，以减少噪音污染。
2. 2.The new office building has a soundproof floor that blocks out external noise.
   新办公楼有隔音地板，可以阻挡外界噪音。
3. 3.The construction workers used soundproof floor tiles to improve the acoustics of the classroom.
   建筑工人使用隔音地板瓷砖来改善教室的声学效果。