如果我们还没有吸取这样的教训，那么这件事的教训之一就是告诉我们尽管选出了一位黑人总统，但种族敏感问题多么容易在美国生活中浮出水面。
One thing to be learned, if we didn’t know this already, is how close racial sensitivities are to the surface of US life, despite the election of a black president.