Bill and Melinda Gates, 比爾與美琳達·蓋茲

Bill and Melinda Gates (Photo by Dave Kotinsky/Getty Images for The ONE Campaign)
Bill And Melinda Gates Have Educational Superpowers - Forbes
http://www.forbes.com/sites/carminegallo/2016/02/26/bill-and-melinda-gates-have-educational-superpowers/#2a0626960862

Bill & Melinda Gates Foundation - Wikipedia, the free ...

比爾與美琳達·蓋茲基金會