2011-04-06 Why Hands-Free Faucets May Be a Risk to Some Hospital Patients
This is the VOA Special English Health Report. Automatic faucets use an electronic sensor to start and stop the flow of water when people wash their hands. These faucets save…
VOA英语教学网 - VOA LEARNING ENGLISH
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This is the VOA Special English Health Report. Automatic faucets use an electronic sensor to start and stop the flow of water when people wash their hands. These faucets save…