He represented the advanced navigation technology of mankind at that time. And promote cultural exchanges among different civilizations.
他说“我爱你”时所谓何意 What does he mean by “I love you?”
大师经典文库:大学(汉英对照) The Great Learning
自闭症是什么?(上) What Is Autism? (1)
自闭症是什么?(下) What Is Autism? (2)