#蹂躏雅思备考词汇#今天是512大地震纪念日，为故去的同胞默哀。avalanche雪崩;lahar火山泥流;mudflow/landslide泥石流;flood洪水;tsunami海啸;drought干旱;hurricanes/tropical cyclones/typhoons飓风（台风）;wildfire森林大火;epidemic流行病;famine饥荒;natural disaster 自然灾害;tragedy 灾难
