a group of four related literary or operatic works (文學(xué)作品、歌劇等的)四部曲 Greek ■a series of four ancient Greek dramas, three tragic and one satyric, originally presented together (古希臘由三部悲劇與一部滑稽喜劇組成的)四聯(lián)劇,四部曲
(Medicine)a set of four related symptoms or abnormalities frequently occurring together (醫(yī))四聯(lián)癥