US president Joe Biden announced a series of new measures to combat the spread of the Delta coronavirus variant, including a call for states to offer $100 incentives for jabs and instructions for federal workers to show proof of vaccination or to wear masks.
美國總統喬?拜登(Joe Biden)宣布一系列旨在遏制新冠病毒Delta變種蔓延的新措施,包括呼吁各州提供每人100美元的疫苗接種激勵,以及要求聯邦政府工作人員提供疫苗接種證明或戴上口罩。
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