It's sort of like how most people use a refrigerator-they don't want to know about the coolants in the system; they just want the food to be cold when they reach for it.
这有点像大多数人使用电冰箱一样——他们不希望了解系统中的冷冻剂；他们只希望在取食物时食物已冷冻。
2
Storage: kept inrefrigerator and out of children's reach.