1. The WHO estimates that Bangkok, Thailand IV-drug users having the AIDS virus increased from less than 1 percent in August 1987 to 30 percent one year later.
    世界卫生组织估计泰国曼谷携带艾滋病毒的静脉注射吸毒者从1987年8月的不到1%一年之后增加到了30%。

2. 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。

3. And by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
    测出回声间隔的时间，便可算出该处海洋的深度。

4. Despite their short time on Earth, however, people have brought about enormous changes to the surface of the planet — changes far out of proportion to the interval of time they have occupied it.
    然而，尽管在地球上的时日尚短，人类却已给地球表面带来了巨大的变化——这些变化与人类占据地球的短暂时间相比，是远远不成比例的。

5. 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。

6. 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。

7. Some unknown interval of time passes before her eyes open again, only this time there is no response in them, just a blank stare.
    不知过了多长时间，她又睁开了双眼，只是这一次目光里没有任何反应，只有空空的凝视。

8. Unfortunately, there is frequently a great interval between knowing how to solve a problem and finding the resources to solve it.
    不幸的是，从知道怎样解决问题到准备充足的人力物力去解决它，两者之间还有很大的差距。

9. On July 19th, 1909, in the early morning, Hubert Latham took off from the French coast in his plane the ´Antoinette IV.´
    1909年7月19日凌晨，休伯特.莱瑟姆驾驶"安特瓦特4号"飞机从法国海岸起飞，