paraldehyde

例句：

1. 1. The chemical was used in the manufacturing process of the plastic.
   这种化学物质被用于塑料的制造过程中。
2. 2. The room had a strong smell of formaldehyde, which made me feel sick.
   房间有一股强烈的甲醛气味，让我感到恶心。
3. 3. The manufacturer claims that their product is free from formaldehyde.
   制造商声称他们的产品不含甲醛。