1. This tendency is now spreading rapidly downwards.
    现在这种趋势正在迅速地蔓延到社会下层.

2. They are also valuable resources in spreading information to their schools, community groups, and churches.
    他们也是向学校、社区组织和教堂传播信息的有价值的资源。

3. Train teenagers to educate their peers. Because AIDS is spreading fastest among teenagers in the rural South, the stylists have established an "AIDS Busters" program which trains youth from 8 to 26 to go into the community and teach "A
    培训青少年去教育自己的同龄人。由于艾滋病在南部农村地区的青少年当中传播速度最快，发型设计师们设立了一个称为“艾滋病克星”的项目，培训8到26岁的青少年，让他们到社区给同龄人上“艾滋病101”课程。

4. 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。

5. The actual patterns of spreading of the AIDS virus change from culture to culture.
    艾滋病的实际传播方式又因文化的差异而有所不同。

6. The bird population is decreasing because of oil spills and spreading cities.
    由于海上石油泄漏和城市的不断扩大，鸟类的数量正在减少。

7. Heterosexual(异性之间的) spreading is low, but there is danger that the spread of AIDS from male(男性) IV-drug users to their female(女性) partners could increase the appearance of AIDS in the heterosexual population.
    异性之间传播可能性不大，但艾滋病从男性静脉注射吸毒者传播到他们的女性伴侣，则有可能提高异性恋者艾滋病的发病率。

8. As workaholics tend to put all their eggs in one basket, their job, they can be helped by spreading these eggs into several baskets.
    因为工作狂把一切希望都寄托在一件事--他们的工作上，因此帮助他们的办法是把他们的希望分散到几件事上去。

9. Spreading of AIDS in North America, Western Europe, Australia, New Zealand and parts of Latin America occurs most often among homosexual(同性恋) or bisexual(双性恋) men and intravenous (IV) (静脉内注射的) drug users(吸毒者), most often in city areas.
    在北美洲、西欧、澳大利亚、新西兰和部分拉丁美洲地区，艾滋病常常在同性恋或双性恋男子之间，或采用静脉内注射的吸毒者之间传播，并且往往在城市传播。

10. Spreading through homosexual contact and IV-drug use almost does not exist.
    通过同性恋者的接触和静脉注射吸毒等方式的传播几乎不存在。