Bill & Melinda Gates Foundation co-chairs made a bet in 2000 -- and they're so excited at progress made so far they're doubling down for the next 15 years.
원문출처 : http://edition.cnn.com/2015/01/21/opinion/bill-melinda-gates-our-bet-2030/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/01/21/opinion/bill-melinda-gates-our-bet-2030/index.html?eref=edition