Even if supplies are restored quickly, however, America faces a more stubborn problem.

不过，即使供应迅速恢复，美国也面临着一个更为棘手的问题。

But here's the irony: Our mind is most likely to solve our most stubborn problems while we are sitting in luxury in a Left Bank cafe.

但是，具有讽刺意味的是，当我们坐在豪华的左岸咖啡馆时，我们的脑子极有可能能解决那些最棘手的问题。