ADJECTIVE | VERB + EMPEROR | PREPOSITION | PHRASESADJECTIVE➤reigning在位的皇帝➤future皇儲➤late先帝VERB + EMPEROR➤be, become當皇帝;成為皇帝▸➤crown sb立某人為皇帝◇Charlemagne was crowned Emperor on Christmas Day, 800 AD.查理曼於公元 800 年的聖誕節加冕為皇帝。PREPOSITION➤under an/the emperor在皇帝的統治下◇It was under the emperor Justinian that these advances were made.這些進步是在查士丁尼皇帝的統治下取得的。➤emperor of⋯的皇帝◇the emperor of Japan日本天皇PHRASES➤the reign of an emperor皇帝的統治◇during the reign of the last emperor在末代皇帝的統治期間