lìshǐ / shàng / xǔduō / wángcháo / de / zhì / luàn / xúnhuán / fǎnyìng / le / zhèngzhì / zhìdù / de / zhòuqīxìng / biànhuà

历史上许多王朝的治乱循环反映了政治制度的周期性变化。

The cyclical rise and fall of many dynasties throughout history reflects the periodic changes in political systems.