波斯帝国 (波斯帝國) bōsī dìguó

bōsī dìguó proper noun Persian Empire; Achaemenid Empire; Sassanid Empire
Domain: History 历史 , Concept: Empire 帝国
Notes: (ca. 550－330 BCE) Achaemenid Empire and (c. 224－651 CE) Sassanid Empire, also known as the Second Persian Empire