Sino-US relations need not take such a turn.On most contemporary

Sino-US relations need not take such a turn.On most contemporary issues,the two countries cooperate adequately；what the two countries lack is an overarching concept for their interaction.
【正确答案】：在大多数当代问题上，两国能够充分合作；它们缺少的是一个总体上的互动理念。【解析】原句是由两个分句结合而成的一句话。采用直译法将第一个分句中的副词在汉译时置于动词前面，译为“充分合作”；第二个分句是由what引导的主语从句，译作“缺少的是……”，overarching译为“非常重要的，总体的，包揽一切的”。