soluble protein in water

例句：

1. 1.The solution is soluble in water.
   这个溶液易溶于水。
2. 2. The drug is soluble in water and can be dissolved in it.
   这种药物易溶于水，可以在水中溶解。
3. 3. The soluble compounds are easily dissolved in water.
   这些可溶化合物容易在水中溶解。