The US health secretary warned on Sunday that the window to halt the spread of coronavirus across America was closing after a clutch of southern states reported record increases in cases.
美國(guó)衛(wèi)生部長(zhǎng)周日警告，遏制新冠病毒在全美傳播的窗口正在關(guān)閉，此前南部幾個(gè)州報(bào)告的新增病例創(chuàng)下新高。
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