美国国务院：叙利亚的有关各方必须后退一步，开展有意义的对话，以实现持久的停火。

Core Viewpoint - The U.S. State Department emphasizes the necessity for parties involved in Syria to step back and engage in meaningful dialogue to achieve a lasting ceasefire [1] Group 1 - The U.S. government is advocating for a reduction in hostilities among the conflicting parties in Syria [1] - The call for dialogue is aimed at fostering conditions conducive to a sustainable peace [1] - The statement reflects ongoing U.S. diplomatic efforts to stabilize the situation in Syria [1]