Twenty countries spanning four continents have reported record-breaking numbers of Covid-19 cases in the past week, highlighting the strain Omicron is exerting on the health systems of both rich and poor nations globally.
过去一周，跨越四大洲的20个国家报告了创纪录的新冠病例数，突显出Omicron对manbetx app苹果 富国和穷国的卫生系统造成的压力。
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