U.S. Vice President Joe Biden is in Ukraine for talks with the country's leadership on the possibility of fresh assistance to the Kyiv government, as it battles a pro-Russian insurgency near the Russian border. 美国副总统乔`拜登在乌克兰同该国领导层就给予基辅政府新援助的可能性展开会谈,基辅政府正同俄罗斯边境地区的亲俄叛乱分子战斗. ____________________________