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Sales of face masks are breaking all records not only in Mexico but also in Sweden.
口罩的销售不仅在墨西哥打破所有记录,而且在瑞典也如此.
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We could issue face masks to all students, we could close down all schools.
我们可以向学生派发口罩, 或要求所有学校停课.
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Those involved in the preparation or serving of food should wear a face mask.
参与筹备或服务的食品应戴上口罩.
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