Special Topic ▶ IF THE WORLD WERE 100 PEOPLE 来自 Stephen|已发表 2013-08-03 ▶ IF THE WORLD WERE 100 PEOPLE UPDATED – YouTube.
已发表 2015-05-16 This 10 Minute TED Talk by Bill Gates Will Teach You Everything You Need to Know About Presenting This 10 Minute TED Tal […]
