___________________________________________ Russian Foreign Minister Sergei Lavrov promised the two sides would continue to work on contentious issues, but his US counterpart John Kerry said some progress had already been made. World news from the BBC. ______________________________俄罗斯外长拉夫罗夫承诺双方将为解决有争议的问题继续努力,但是美国国务卿约翰?克里表示在相关方面已经取得了一些进展.BBC世界新闻报道.
