Biden在tweet上说了啥？

CrisisInvesting

Today, I’m announcing we have purchased 10 million treatment courses of Pfizer’s antiviral COVID-19 pill. Vaccination is still our most important tool – but this new pill may dramatically reduce hospitalizations and deaths and help accelerate our path out of this pandemic.
8:02 AM · Nov 18, 2021·The White House

CrisisInvesting

pfizer 的 新冠药开卖了呢。