their age, any princes and princesses who knew even a little bit, raised their cups under their mothers' guidance. Those too young to drink were given water instead. Everyone politely toasted Li Yinhu...Chapter 755: Replacementiculty.After understanding, Song Yingxing said: "Your servant dares not disobey your command, but the development of gunpowder requires a large number of experiments, and the application for materials...