大规模霍乱暴发主要原因贫穷，战争和自然灾害，迫使人们生活在拥挤的条件下，没有足够卫生设备。
The risk of a mass cholera outbreak is highest when poverty, war or natural disasters force people to live in crowded conditions without adequate sanitation, according to the Mayo Clinic.
大规模霍乱暴发主要原因贫穷，战争和自然灾害，迫使人们生活在拥挤的条件下，没有足够卫生设备。
The risk of a mass cholera outbreak is highest when poverty, war or natural disasters force people to live in crowded conditions without adequate sanitation, according to the Mayo Clinic.
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