热心于公益事业的比尔·盖茨这些年在环保马桶上没少花钱。自从盖茨基金会于2011年发起了“改造马桶挑战”后，已有多个机构参与过这一挑战。近日三星研发出一款无需用水并能把便便烧成灰的马桶，既环保又节能，有望投入大规模生产。 Part of the Bill & Melinda Gates Foundation initiative to transform toilet ...

Chinese President Xi Jinping has written back to Bill Gates, co-chair of the Bill & Melinda Gates Foundation, after receiving a letter from the U.S. business leader on the novel coronavirus disease ...