China has long been anxious to establish a more strategic relationship with Washington unencumbered by bilateral disputes on issues like trade, missile proliferation and intellectual property rights. 长期以来,中国一直迫切希望与华盛顿建立一种更具战略意义的关系,不受贸易、导弹扩散和知识产权等问题产生的双边争端困扰。