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1Hundreds of little robots are rolling around colleges and cities in the United States, Britain and elsewhere. The robots, about 50 centimeters tall, are bringing food like pizza to hun?gry students.rn2 The robots were being tested in limited numbers befo
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1Hundreds of little robots are rolling around colleges and cities in the United States, Britain and elsewhere. The robots, about 50 centimeters tall, are bringing food like pizza to hun?gry students.rn2 The robots were being tested in limited numbers before the pandemic (流行病) started. But pandemic?related worker shortages and a desire for contactless delivery have expanded their use.
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