a tropical island where no people live 热带荒岛 Robinson Crusoe is cast away on a desert island for 28 years. 鲁滨逊·克鲁索（Robinson Crusoe）在荒岛上被抛弃了28年。
Word Origindesert ultimately from Latin desertus ‘abandoned, deserted’; in later use treated as an attributive use of desert ‘area of land’.