1. According to WHO, this international effort has produced two critical developments: first, there is an amazing level of world-wide focus, using world scientists and international sharing of human and economic resources to fight AIDS.
    世界卫生组织认为，这种国际努力已经产生了两个重要成果：第一，由于动员了全球的科学家以及动用了各国的人力和财力与艾滋病作斗争，全球对艾滋病的关注达到了惊人的程度。

2. Also, at least five million persons likely have the human immunodeficiency virus (HIV) (艾滋病病毒), which causes AIDS.
    此外，至少有500万人可能携带导致艾滋病发作的艾滋病病毒。

3. About three million years ago, scientists believe, the first human beings walked the Earth.
    科学家们认为，大约300万年前，原始人类开始在地球上行走。

4. As the human population grows, people consume more.
    随着人口越来越多，人类的消耗也越来越多。

5. All these harmful results come from the too much use of resources and the human struggle to control the environment.
    所有这些恶果都源于对资源的过度使用和人类对环境的强行控制。

6. A world with human clones was suddenly within reach. It was science fiction coming to life.
    一个克隆人类的世界突然间近在咫尺，科幻小说变成了现实。

7. And by altering the proteins on the surfaces of animal organs to make them more like human organs, scientists believe they may be able to create a plentiful source of organ donors for people.
    而且科学家们相信，通过改变动物器官表面的蛋白质，它们更像人类器官，就能够找到一个为人类提供器官的丰富来源。

8. "But I believe that all the answers lie in human error, mechanical problems, strange atmospheric events, or unusual magnetic phenomenon."
    "但是我相信，所有的答案都归于人为失误、机械故障、怪异的大气活动或者异常的磁场现象。"

9. "All nationalities, colors, shapes and sizes, a gallery of human faces," I whispered.
    "他们各种国籍、各种肤色都有，体形、个子大小也都不同，简直就是一个人种大聚会，"我低声说。

10. You can see the small pyramids and the Sphinx, the great stone statues and lions with human heads.
    你可以看到那些小一点的金字塔和狮身人面像，那是一座巨大的人头狮身的石雕像。