1、
Pestilence is a fierce and infective disease which is caused by the pestilential pathogen.
疫病是由感受疫疠之气引起的一种具有强烈传染性的疾病.
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2、
May be with foreign war or natural disaster and epidemic disease caused by the pandemic.
可能是与外族争战,或有天灾及疫疠的大流行所造成.
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