shèng shì
a flourishing period
period of prosperity
a golden age
tài píng shèng shì
peace and prosperity (idiom)
kāng qián shèng shì
booming and golden age of Qing dynasty (from Kang Xi to Qian Long emperors)
Kāi yuán shèng shì
peak of Tang prosperity during Kaiyuan, reign name 713-741 of Tang emperor Xuanzong 唐玄宗[Táng Xuán zōng]