soundproof的例句（soundproof在句子中的用法）

• These boxes were usually old freight cars that were almost soundproof. 这些包厢通常采用几乎能隔音的旧火车货柜.
• This material is soundproof. 这材料是隔音的.
• The studio isn't soundproof. 这个摄影棚并不隔音。