an empire in S Asia created by Cyrus the Great in the 6th century BC and destroyed by Alexander the Great in the 4th century BC.是什么意思_an empire in S Asia created by Cyrus the Great in the 6th century BC and destroyed by Alexander the Great in the 4th century BC.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句