What does it mean to steam steamed buns in the house and bake them outdoors?

This means that the weather is very hot. According to the Han Dynasty, the phrase "Steamed steamed bread is indoors and baked steamed bread is outdoors" means that the weather is too hot, and people are compared to steamed bread, and the indoor heat is large, just like steamed bread; The sun is shining outside the room, just like baking buns.