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来源:雅诚德英语网
However, most people have no immunity to this virus, which means that more are likely to become infected than with a seasonal strain of influenza.
然而,大多数人对此病毒没有免疫性,这意味着比季节性流感株更容易感染。
However, most people have no immunity to this virus, which means that more are likely to become infected than with a seasonal strain of influenza.
然而,大多数人对此病毒没有免疫性,这意味着比季节性流感株更容易感染。