In order to convert this opaque, 90,000 hours of video into something that we could start to see, 为了把这个9万小时的录像变成我们能识辨的东西 we use motion analysis to pull out, as we move through space and through time,
is a consequence of ultraviolet light, of latitude and climate. 这只不过是紫外线 纬度和气候造成的。 There really is no such thing as race. 实际上并没有什么"种族"。 We're one species, each of us much much more alike
REMARKS BY THE PRESIDENT AT INDEPENDENCE DAY CELEBRATION THE PRESIDENT: Welcome to the White House. (Applause.) And happy Fourth of July. Michelle and I are honored and proud to have you here on the F
