Study: Pfizer Vaccine Appears Effective Against COVID-19 Variants

VOA Learning English • voa
Jan. 11, 2021 ~4 min

new health-lifestyle

Grammar for Making New Year’s Resolutions

VOA Learning English • voa
Dec. 31, 2020 ~5 min

new everyday-grammar

How COVID-19 Vaccines Developed in Record Time

VOA Learning English • voa
Dec. 23, 2020 ~6 min

science-technology new

New Type of Coronavirus Identified In Britain, South Africa

VOA Learning English • voa
Dec. 22, 2020 ~6 min

new health-lifestyle

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