proelastase

例句：

1. 1. Proteinase is an enzyme that breaks down proteins.
   蛋白酶是一种能分解蛋白质的酶。
2. 2.The digestive enzymes in your stomach help break down food.
   你胃里的消化酶帮助分解食物。
3. 3. Proteinase inhibitors are used to prevent the activity of proteinases.
   蛋白酶抑制剂用于防止蛋白酶的活动。