Indeed, that is why the United Nations was established after two world wars: to promote social progress and better standards of life for the peoples of the world and to unite our strength in order to maintain international peace and security.
事实上，这是在两次世界大战后建立联合国的原因：以促进社会进步和提高世界各国人民的生活水平，并汇集我们的力量维持国际和平与安全。