1. The heptarchy was a period in English history when the country was divided into seven kingdoms.
七国并立是英国历史上的一个时期，当时国家分为七个王国。

2. The heptarchy began in the 6th century and lasted until the 9th century.
七国并立始于6世纪，持续到9世纪。

3. Each of the seven kingdoms in the heptarchy had its own king and government.
七国并立中的每个王国都有自己的国王和政府。

4. The heptarchy was a time of frequent wars and power struggles between the kingdoms.
七国并立是一个充满频繁战争和权力斗争的时期。

5. The heptarchy eventually ended when the kingdoms were unified under one ruler.
七国并立最终在王国统一于一位统治者的时候结束了。

6. The heptarchy is an important period in English history that shaped the country's political landscape.
七国并立是英国历史上一个重要的时期，它塑造了国家的政治格局。