新人道主义和卫生援助增强美国应对COVID-19的领导力

新人道主义和卫生援助增强美国应对COVID-19的领导力  

阅读原文: https://china.usembassy-china.org.cn/new-humanitarian-and-health-assistance-bolsters-u-s-leadership-in-response-to-covid-19/