Video
18:41, 07-Nov-2018
US billionaire philanthropist Bill Gates has unveiled in Beijing a futuristic toilet that doesn't need water or sewers and uses chemicals to turn human waste into fertilizers.
Updated
18:03, 10-Nov-2018
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Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3