据美国《雅虎》报道，奥巴马当局加强获得中国支持的尝试，就俄罗斯军事干预乌克兰对其进行孤立。自从乌克兰危机开始以来，来自中国的官方评论似乎谨慎地保持中立，为了让北京拿定主意，奥巴马总统周六晚上打电话给中国主席。
这次通话是俄罗斯军队控制挺莫斯科的克里米亚地区以来他们的第一次交流。此时正值有信号表明俄罗斯总统普京加强其克里米亚立场之际。本周末，克里米亚将就是否加入俄罗斯举行公投，美国及其盟友发誓对此不予承认。
The Obama administration is stepping up its attempts to court China's support for isolating Russia over its military intervention in Ukraine.
With official comments from China appearing studiously neutral since the Ukraine crisis began, President Barack Obama spoke to Chinese President Xi Jinping late Sunday in a bid to get Beijing off the fence.
The call was their first known conversation since Russian forces took control of Ukraine's pro-Moscow Crimea region. It came amid signals that Russian President Vladimir Putin was hardening his position on Crimea, which is due to vote on joining Russia this weekend in a referendum the U.S. and its allies have vowed not to recognize.
奥巴马当局加强获得中国支持的尝试，就俄罗斯军事干预乌克兰对其进行孤立。
自从乌克兰危机开始以来，来自中国的官方评论似乎谨慎地保持中立，为了让北京拿定主意，奥巴马总统周六晚上打电话给中国主席。
这次通话是俄罗斯军队控制挺莫斯科的克里米亚地区以来他们的第一次交流。此时正值有信号表明俄罗斯总统普京加强其克里米亚立场之际。本周末，克里米亚将就是否加入俄罗斯举行公投，美国及其盟友发誓对此不予承认
In making his case, Obama appealed to China's well-known and vehement opposition to outside intervention in other nations' domestic affairs, according to a White House statement.