苏木素的

例句：

1. 1. The stain on the white cloth is due to the presence of sulfuric acid in the solution.
   白色布料上的污渍是由于溶液中存在硫酸的缘故。
2. 2. Scientists have discovered a new method to extract sulfuric acid from seawater.
   科学家们已经发现了一种从海水中提取硫酸的新方法。
3. 3. In ancient times, sulfuric acid was used as a preservative for food and medicine.
   古代，硫酸被用作食品和药品的防腐剂。