如图所示，在干燥的圆底烧瓶里充满氨气，用带有玻璃管和滴管（滴管里预先吸入水）的塞子塞紧瓶口．立即倒置烧瓶，使玻璃管插入盛有水的烧杯里（预先在水里滴入少量酚酞溶液）．打开橡皮管上的夹子，轻轻挤压滴管，使少量水进入烧瓶，可观察到的现象为： ____

(Ted and Bob are having breakfast.)

Ted：Hi, Bob! Eating fried chicken？ ____

Bob：Eggs and milk? I don't want to have them every day.____

Ted：But don't have too much unhealthy food.____

Bob：OK. I won't. By the way, I find some students throw away eggs and milk.

Ted：That's too bad ____

Bob：Yes. But what do you think we can do?

Ted： ____

Bob：Let's have a try，then we may have different kinds of food every day.