pandemics

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美[]

基本释义

Periods when diseases spread around the world are called pandemics.

疾病在全世界范围内传播时期称为大流行.

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Since then, there have been a total of eight cholera pandemics.

从那时开始, 霍乱大流行总共爆发过8次.

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Previous pandemics have been characterized by waves of activity spread over months.

以往大流行的特点是一波接一波的流行持续数月之久.

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Pandemics, plagues and pestilence have beset humans throughout history.

传染病、瘟疫和鼠疫困扰着整个人类历史.

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Both flu pandemics and global warming are lethal.

全球变暖和流感瘟疫一样是致命的.

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They focus on type A, which tends to cause more severe disease and pandemics.

科学家们把重点集中在了A型流感上, 因为它往往会造成更严重的疾病和流行病.

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The other two flu pandemics of the 20 th century, however, were far milder.

20世纪的另外两次流感流行的病死率则温和得多.

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