From Washington, this is VOA news. I'm Dave DeForest reporting. ______________________________The move could pave the way for an expansion of humanitarian aid to besieged cities and set the stage for a resumption of talks on a political transition. In a joint statement, on Monday, the U.S. and Russia proposed that the ceasefire begin on February 27. 这里是华盛顿VOA新闻,我是戴夫`迪弗斯特. ________________________这一决议为人道主义救援进入一些被围困的城市铺平了道路,同时为重启政治转型和谈创造了条件.在周一发布的一份联合声明中,美俄双方表示停火协议将从2月27号开始生效.