参加峰会的有数十位来自西半球的领导人，其会议主义侧重于国家间合作和解决美洲地区人民面临的挑战。
The summit includes dozens of leaders from throughout the Western Hemisphere and it focuses on cooperation between countries and addressing the challenges facing the people of the Americas.
在这些原则的再次引领下，我们可以迎战需要更大努力、国家间更强合作和更大的理解而面对的新威胁。
Guided by these principles once more, we can meet those new threats that demand even greater effort - even greater cooperation and understanding between nations.
这需要国际间的合作，比如富裕国家发行劳动准入证，让这些移民每一个五年期间有一年在其本国工作。
This would require international coordination whereby rich countries would issue work permits, obliging the migrants to spend one of, say, each five years working in their own country.
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