cataclysms
n．大灾难，大变革：指突如其来的、具有毁灭性的自然灾害或社会政治事件。
例句
After the cataclysms livestock will die for lack of feed or be eaten.
剧变过后，家畜将因宰杀或缺乏饲料而死亡。
The conflicts of scarcity are not the same as the cataclysms of Malthus.
稀缺性冲突不同于马尔萨斯灾难。
People like him have forecast similar cataclysms before, he says, and been right.
也曾有人与他一样预测过类似的大灾难，他说道，并且成功了。
