waterproof paper

例句：

1. 1.This waterproof paper is perfect for covering books and documents.
   这种防水纸非常适合覆盖书籍和文件。
2. 2.The waterproof paper was used to protect the fragile painting from dust.
   防水纸被用来保护这幅脆弱的画作免受灰尘的侵害。
3. 3. The waterproof paper was a lifesaver during the flood, preventing many items from being damaged.
   防水纸在洪水中起到了救生的作用，防止了许多物品受损。