molting fluid

例句：

1. 1. The fish was molting its skin as it grew larger.
   随着鱼的成长，它正在蜕皮。
2. 2. The scientist used this molting fluid to study the behavior of the animal.
   科学家使用这种蜕皮液来研究动物的行为。
3. 3. The molting process is essential for the survival of many animals.
   对于许多动物来说，蜕皮过程是生存所必需的。