Nature disasters(2): 雹暴hailstorm 热浪heat wave 飓风（台风）Hurricanes,Tropical cyclones, and Typhoons 冰雹ice storm 龙卷风tornado 冰河时代ice age 森林大火wildfire 流行病epidemic 饥荒famine 太阳耀斑solar flare 沙尘暴sand storm Nature disasters(2): 雹暴 hailstorm 热浪 heat wave 飓风（台风）Hurricanes, Tropical cyclones, and Typhoons 冰雹 ice storm 龙卷风 tornado 冰河时代 ice age 森林大火 wildfire 流行病 epidemic 饥荒 famine 太阳耀斑 solar flare 沙尘暴 sand storm