第一個在美國做實驗的COVID-19疫苗進入最後的實驗
First COVID-19 vaccine tested in US poised for final testing *****GzeHXgTdtC
— Kellyanne Conway (@KellyannePolls) July 14, 2020
First COVID-19 vaccine tested in US poised for final testing *****GzeHXgTdtC
— Kellyanne Conway (@KellyannePolls) July 14, 2020