译文及详解：

　　和平稳定是发展的前提和基础。上个世纪，人类经历了两次世界大战，生灵涂炭， 经济社会发展遭受严重挫折。第二次世界大战结束以来，世界经济能够快速增长，主要得益于相对和平稳定的国际环境。

　　Peace and stability form the prerequisite and foundation for development. The two world wars in the last century caused mankind untold sufferings and world economic and social development severe setbacks. It is mainly due to the relatively peaceful and stable international environment that the world economy has been able to grow at a fast pace in the post-war era.

　　“和平稳定”固定说法：peace and stability

　　"得益于"用了句型 it is due to...

　　我们应该恪守联合国宪章宗旨和原则，充分发挥联合国及其安理会在维护和平、缔 造和平、建设和平方面的核心作用。坚持通过对话和协商，以和平方式解决国际争端。

　　We should abide by the purposes and principles of the UN Charter and bring into full play the central role of the United Nations and its Security Council in peace keeping, peace making and peace building. We should seek peaceful settlement of international disputes through dialogue and consultation.

　　“宗旨和原则”固定说法：the purposes and principles

　　我们应该坚持国家不论大小、强弱、贫富都是国际社会平等一员，以民主、包容、 合作、共赢的精神实现共同安全，做到一国内部的事情一国自主办、大家共同的事情大 家商量办，坚定不移奉行多边主义和国际合作，推进国际关系民主化。

　　All countries, big or small, strong or weak, rich or poor, are equal members of the international community. We should work for common security in a spirit of democracy, inclusiveness, cooperation and win-win progress. Internal affairs of a country should be handled independently by the country itself and international affairs should be managed collectively through consultation by all. We should be committed to multilateralism and international cooperation, and promote democracy in international relations.

　　“国际社会”固定说法：international community