发布时间：2021-02-18 作者： 奈特英语
Health workers wait to receive China's Sinovac COVID-19 vaccine during mass vaccination program for health workers as the main priority group in Medan, North Sumatra, Indonesia, Feb. 10, 2021. (Photo: Xinhua)
Health workers receive China's Sinovac COVID-19 vaccine during mass vaccination program for health workers as the main priority group in Medan, North Sumatra, Indonesia, Feb. 10, 2021. (Photo: Xinhua)
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