为了保护参加核峰会的47个国家的领导人，美国首都华盛顿采取安全措施，一些地方禁止行人车辆通过。
Areas of Washington have been shut down due to security measures designed to protect leaders from 47 nations gathered for the nuclear summit.
来自世界上接近50个国家的领导人在华盛顿参加核安全峰会，乌克兰承诺2012年之前消除高浓缩铀。
As leaders from nearly 50 countries meet in Washington for a major summit on Nuclear Security, Ukraine has pledged to eliminate stockpile of highly enriched uranium by 2012.
华盛顿参加核安全峰会的世界领导人了解到，核材料如果落入坏人手中，后果将是多么危险。
World leaders at a summit on nuclear security in Washington have heard dire warnings of the danger of nuclear material falling into the wrong hands.
在这个星期美国华盛顿举行的47国核安全峰会期间二位领导人举行一对一闭门会谈。
The two leaders held a one-on-one meeting on the sidelines of this week's 47-nation Nuclear Security Summit in Washington DC.
在这个星期美国华盛顿举行的47国核安全峰会期间二位领导人举行一对一闭门会谈。
The two leaders held a one-on-one meeting on the sidelines of this week's 47-nation Nuclear Security Summit in Washington DC.
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