网友回答：
the u.s. government s top infectious disease expert， a leading epidemiologist told xinhua on thursday.国际英语新闻:Spotlight:，"the next couple of weeks are going to be critical in our ability to address those surgings that we re seeing in florida， in arizona a
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
