- Many countries are testing plans to deal with a flu pandemic should the virus develop into a more dangerous form.
许多国家的科学家正在研究计划来防止这种流行性病毒演变成更危险的病毒类型。
- Green tea catechin and theaflavin, which are both present in black tea, have a strong effect on the flu virus.
绿茶儿茶酚，跟红茶里含有的一样，都对流行性病毒有很强的影响。
