2014-12-10 Indoor Pollution Kills Millions Each Year
From VOA Learning English, this is the Health Report. The way we cook is important. In many countries, the two choices are natural gas or electric-powered stoves. The World Health…
VOA英语教学网 - VOA LEARNING ENGLISH
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From VOA Learning English, this is the Health Report. The way we cook is important. In many countries, the two choices are natural gas or electric-powered stoves. The World Health…