If you want to open up land, go to Qin and Chu. What does dynasty mean?

Two meanings: In the idiom "Chao Qin and Mu Chu", it means that some small countries rely on Qin in the morning and Chu in the evening. Chao means morning. The pronunciation of "Chao" here is: [zhāo]. In the sentence you mentioned, "Chao Qin" and "Chao Chu", the pronunciation of "Chao" is [cháo]. It means worship and attachment. It means that if you want to expand your territory, you have to worship the two big countries Chu and Qin. You must rely on these two big countries. If you don't rely on them or worship them, you can't get their support. Unable to expand territory.