板块【新朋友】点击标题下面蓝字【可可英语】加关注【老朋友】点击手机右上角图标【转发分享】内容正文文本Our show starts with news from the pharmaceutical industry. The drug company Pfizer says it's moved a big step closer to a breakthrough in the fight against coronavirus. Pfizer's one of many companies that are working on a coronavirus vaccine. It says an early look at research indicates its shot is more than 90 percent effective in protecting people from catching COVID-19. Pfizer's in the midst of its phase three trial, when tests are carried out on tens of thousands of volunteers. The disease continues to spread though at different rates in different countries.Health officials say last Wednesday was the first time the United States recorded more than 100,000 positive tests in a 24 hour period. And the country's seen that several
………………………………
