大人在给小孩子喂饭时,都要先用自己的嘴试试冷热,这样既麻烦又不卫生。我发明的勺子,是由特殊材料制成的。当它接触到的食物温度超过45℃时,勺子会变成红色,表示食物温度高,有烫伤的可能; When adults are feeding their children, they should try hot and cold in their mouths first, which is troublesome and unsanitary. The spoon I invented is made of special materials. When it touches the food temperature exceeds 45 ℃, the spoon will turn red, indicating that the food temperature is high, there may be scalds;