Twenty****************

I especially like the description of the beginning of spring in the book: "The east wind thaws in the first period, the stinging insects begin to stir in the second period, and the fish catches the ice in the third period." It feels very vivid, and I can immediately imagine the recovery of all things in spring. The custom of hunting spring cattle is also very interesting. It turns out that people in the past prayed for a good harvest this way. I think this book can not only teach us about health care, but also let us understand traditional culture, which is quite good!