Translate the sentences into Chinese. 1. SARS first appeared in China in 2002 and spread to more than 20 countries, mostly through air travel, before easing in 2003. 2. The air transportation network is the main pathway for a global disease spread 3. A super-spreader airport is an airport that combines two qualities. The first one is that it has a lot of traffic. A lot of people. And the other one is that it is connected to many other airports with many other international flights. 4. If 60 percent of travelers had clean hands, the possibility of slowing a global disease would rise by 69 percent. 5. But even if just 30 percent of travelers had clean hands, the spread of disease could drop by 24 percent.