英语语法分析

Lijiang Ancient Town, also known as Dayan Township, is one of the second batch of the approved historical and cultural famous cities.

丽江古城又名大研镇，是第二批被批准的中国历史文化名城之一。

That’s why we regard Dayan town to be the “Oriental Venice”.

“这就是为什么我们称大研镇为“东方威尼斯”的原因。

He calls this diagrams as Dayan diagrams, that is, Dayan series he said.

他把这个卦系叫做大衍卦系，也就是他说的大衍数列。