通过高质量的教育和医疗体系，我们帮助了拉丁美洲和世界。
We've helped Latin America and other places around the world with our education and health systems.
支持者们宣称，DR - CAFTA会强化中美洲的体系，因而值得牺牲一些主权。
Its proponents argue that DR-CAFTA will strengthen Central America's institutions and that this is worth some sacrifice of sovereignty.
因为北美洲的部落仍未开创自己的文字体系，他们的文学全都是口头文学。
Their literature was entirely oral, for the tribes of North America had not yet developed writing systems.
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