这是因为人对味道的感知除了来自味觉，还来自嗅觉，汤热时汤内分子会剧烈运动，用鼻子闻起来味道就会更浓。

As I live in the south of China, I like to eat food with sweet flavor. Someday, there comes the new people who live next to my house. They come to ...