Several other developed nations have also ordered millions of doses of the pfizer biontech vaccine.
其他几个发达国家也订购了数百万剂辉瑞生物技术疫苗。
单词 | pfizer |
例句 |
原声例句
VOA常速英语_科技 Several other developed nations have also ordered millions of doses of the pfizer biontech vaccine. 其他几个发达国家也订购了数百万剂辉瑞生物技术疫苗。 |
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