三期四年是什么意思

简介：Zhu Cixiang was secretly surprised, because Bo Yu's temperament was similar to what was recorded in unofficial histories. According to unofficial records, Bo Yu had a stutter when he was young, and when talking to him about worldly matters, Wei Wei could not answer. But once he talks about mechanical astronomy and water conservancy and city defense, he becomes eloquent and eloquent, and his stammering problem disappears immediately.