高度 こうど経済 けいざい成長 せいちょうでしょう
kōdokeizaiseichōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 高度経済成長

1. Probably high economic growth.; Likely a period of high economic growth.

Polite
Presumptive
Conjecture