The US has agreed to share research tools and intellectual property for technology used to make Covid-19 vaccines through the World Health Organization in a bid to make the treatments more widely available in poorer nations.
美国已经同意通过世界卫生组织分享用于制造新冠疫苗的研究工具和知识产权，以使较贫穷国家更广泛地获得治疗。
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