这对于那些将中美合作视为重振全球经济，迎接气候变化挑战，遏制核扩散威胁，以及跨国合作应对各类难题所必不可少的前提的人来说，这是个坏消息。
That is bad news for those who believe that US-China cooperation is essential for reviving the global economy, meeting the challenge of climate change, containing threats of nuclear proliferation, and managing a host of other problems without borders.