今天我们要学的词是descend on. Descend on，意思是突然袭击、涌入。Foreign immigrants continue to descend on Sydney, making it their gap-year playground, lifestyle retreat or refuge from danger. 外国移民继续涌入悉尼，把这里作为他们的间隔年旅游胜地、度假中心或是逃离危险的避难所。A mix of snow, ice pellets, rain and freezing rain descended on Canada's Montreal on Feb. 25th. 2月25日，雨雪、冰雹和冻雨混杂在一起突袭了加拿大城市蒙特利尔。好的，我们今天学习的词是descend on, descend on, descend on...