1. The World Health Organization says the outbreak has "pandemic potential". 世界卫生组织说疫情有全球暴发的可能性。
2. As of Tuesday officials had not yet announced a change from phase 5. But Doctor Fukuda said the public should understand what a pandemic means. 截至周二世界卫生组织官员尚未宣布改变级别5级，但福田医生说，公众（有权利）理解流感大流行的含义。
3. Airline travel has a significant effect on the spread of influenza, a new study reports, raising the question of whether flight restrictions may be helpful in controlling a pandemic. 一项新的研究报道，航空旅行对流行性感冒的传播有着重大影响，这就提出了一个问题，限制飞行是否有助于控制流感。
英英解释
n.
1. an epidemic that is geographically widespread; occurring throughout a region or even throughout the
2. epidemic over a wide geographical area
3. existing everywhere
