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1881年7月,美国总统菲尔德遭遇枪击,伤势严重,必须立即动手术取出子弹。时值盛夏,病室酷热难当。医生提出,只有降低室温才能为总统实施手术。在那个空调机还没有发明
In July 1881, the United States President Fielde suffered a serious shooting and he must immediately remove the bullet. When it is midsummer, the ward is extremely hot and hard. The doctor proposed that only by reducing the room temperature can the President perform surgery. In that air conditioner has not yet been invented