Several monarchs of vassal states used their wireless telegrams as a tool to reminisce about the past.
Before they communicated, they had to rely on slow letters.
It's OK to be a little close, but it's a little far away. It's difficult to mail letters.
Su Hu, the king of Wei, wants to send a letter to Su Xiong, the king of Zhao, his eldest brother.
Wei could not reach Zhao directly. It needed to bypass the American continent to reach the coastal cities of Zhao by boat.
It is impossible to choose to cross the American continent.
There is no way to connect the American continent.
When you meet a river or a mountain stream, this road is very