The country is entering a period of prosperity.这个国家进入了繁荣期。At present, we are witnessing another building boom.当前,我们又一次处于建筑繁荣期。They made a fortune during the go-go years of the 1980s.他们在二十世纪八十年代的经济繁荣期大赚了一笔。The country is entering upon a period of prosperity.这个国家正在步入繁荣期。