Forecaster John Hammond said: "We're going to see NE and NW winds throughout tomorrow, so the cloud is likely to continue throughout Friday."
天气预报员约翰。哈蒙德说：“明天整天会刮东北和西北风，所以很可能整个周五会是火山灰云天气。”
John Snow had shown that cholera was spread by germs and not in a cloud of gas.
约翰·斯诺在此之前就曾经表明，霍乱是由病菌而不是由气团传播的。
John Snow had shown that cholera was spread by germs and not in a cloud of gas.
约翰·斯诺在此之前就曾经表明，霍乱是由病菌而不是由气团传播的。
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