North Korea is a vivid example of what we do together and how the United States and China are cooperating and working together in ways that would have been unthinkable just a few years ago.

• 北韩的例子生动地说明我们齐心协力就能有所成就，而且还说明美中两国目前正在进行合作，这种合作仅仅在几年前还是不可想像的。