water-soluble catalyst

例句：

1. 1. The drug is water-soluble and can be dissolved in water.
   这种药物是水溶性的，可以在水中溶解。
2. 2.Many foods are water-soluble vitamins that our bodies need to function properly.
   许多食物是水溶性维生素，是我们身体正常运作所必需的。
3. 3. Water-soluble compounds are often used in pharmaceuticals for their ability to dissolve easily in water.
   水溶性化合物通常用于制药中，因为它们容易在水中溶解。