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1. The outbreak of the swine flu has caused a lot of concern among the public.
猪流感的爆发引起了公众的广泛关注。
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2. The plant is suffering from a viral infection, which is causing it to wilt and die.
这植物正遭受着病毒感染,导致它枯萎并死亡。
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3. The virus is highly contagious and can spread quickly through contact with infected plants or animals.
这种病毒具有高度传染性,可以通过与感染植物或动物接触迅速传播。