1. The rise of acquired immune deficiency syndrome (AIDS) around the earth has represented a major challenge to medical progress both in developed and in less — developed countries.
    全球艾滋病的蔓延无论在发达国家还是在欠发达国家都是对医学进步的重大挑战。

2. The past forty years saw great success in the control of spreading diseases and great strides toward achieving "health for all by the year 2000" (a major WHO goal) through improved basic health care, food, cleanliness, and immunization(免疫)
    在过去的40年中，通过改善基本医疗保健、食品、卫生和免疫等项目，人类在控制流行病方面取得了巨大的进步，并且朝着实现"2000年人人享受健康"（世界卫生组织的一项主要目标）迈出了一大步。

3. Three major health trends exist as we begin the new century.
    在我们迈入新世纪之际，健康方面呈现出了三大趋势。

4. The third major trend is toward an attitude of indifference.
    第三个势头是人们的态度变得越来越无动于衷。

5. Therefore, building structures that can withstand the power of earthquakes is a major concern.
    所以，建造具有抗震能力的楼房结构成为关注的重点。

6. The planet has survived major changes for millions upon millions of years.
    这个星球几十亿年来经历了种种重大变化仍能生存。

7. This means that major cities are getting the basic infrastructure to become major parts of the information superhighway, allowing people to log on to the most advanced services available.
    这意味着其主要城市正获得必需的基础设施，成为信息高速公路的主要部分，使人们能够进入系统，获得最先进的服务。

8. The first category consists of substantial payments made for political purposes or to secure major contracts.
    第一大类是那些为政治目的或为获得大宗合同所付出的大笔款项。

9. The following are some of the major qualities that make up emotional intelligence, and how they can be developed:
    下面谈谈构成情感智能的一些主要素质，以及如何来培养这些素质。

10. Newspapers exert such tremendous influence that they can not only bring about major changes to the lives of ordinary people
    新闻具有巨大的威力。它们不仅可以给寻常人家的生活带来重大的变化，