U.S. President Barack Obama will speak Friday at theend of the second and final day of the nuclearsecurity summit in Washington attended by worldleaders.

美国总统奥巴马星期五将在华盛顿举行的核安全峰会上发表讲话。很多国家领导人都出席了这次为期两天的峰会，星期五是峰会的第二天，也是最后一天。

The U.S. leader said Thursday that in the wake ofattacks in places including Brussels, there is “notonly great urgency around the nuclear issue buteliminating generally the scourge of terrorism.”

奥巴马总统星期四表示，布鲁塞尔等地发生袭击后，亟待解决的问题不仅是核安全，而且还有根除恐怖主义。

Obama’s fourth and final nuclear summit has come at a time of heightened concern about thepossibility that Islamic State militants could set off radioactive bombs, and also about NorthKorea’s nuclear weapons development.

这是奥巴马总统任内举行的第4次、也是最后一次核安全峰会。目前，伊斯兰国激进分子可能施放放射性炸弹，以及朝鲜发展核武器等问题都让外界日益紧张。

At a State Department ministerial level dinner, Secretary of State John Kerry said there havebeen times when nuclear security progress has been slow, and there remains an “enormousamount more to do. But every step forward that we take is a step away from danger."

在美国国务院举行的部长级工作晚餐上，美国国务卿克里说，实现核安全的进展有时非常缓慢，还有大量工作要做。但克里表示，每向前迈进一步，就是离危险远了一步。

Earlier Thursday, Obama held a series of meetings with leaders. He met with South KoreanPresident Park Geun-hye and Japanese Prime Minister Shinzo Abe to discuss the North Koreanthreat following Pyongyang's January nuclear test and a long-range missile launch inFebruary.

星期四早些时候，奥巴马与一些国家领导人进行了一系列会晤。奥巴马会见了韩国总统朴槿惠和日本首相安倍晋三，讨论平壤今年1月核试验和2月试射远程导弹所构成的威胁。

Pyongyang also was among the focal points when Obama sat down later with Chinese PresidentXi Jinping.

奥巴马晚些时候还会见了中国国家主席习近平，朝鲜核项目问题也是双方的讨论重点。

"We want to enhance communication and coordination on the Korean nuclear issue andother regional and global issues," said Xi at the start of the talks.

习近平一上来就说，“我们希望在朝鲜核问题以及其他地区和全球问题上加强联络与合作。”

Washington views Beijing, Pyongyang's ally, as key in enforcing U.N. sanctions against NorthKorea for its weapons development.

华盛顿认为，北京作为朝鲜盟友，是联合国制裁朝鲜措施能否落实的关键因素。