1. Earth movements in the past elevated great areas of the seabed.
    地球过去的运动使海底大片地区隆起。

2. Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles in our solar system.
    即使是一台放置在围绕地球的轨道上的望远镜--如非常成功的哈勃望远镜--也因为太阳系中的尘埃微粒而无法胜任。

3. Earth looks like a big blue marble (玻璃球); from high above the Earth and from the moon, the planet gleams and shines.
    地球看上去就像一个巨大的蓝色玻璃球, 从高高的地球上空或从月球上望去，这颗行星熠熠生辉，闪闪发光。

4. Engelbreit is cheerful, down-to-earth, humorous, and always cute.
    恩格尔布赖特乐观、率真、幽默、十分可爱。"

5. Experimental data seem to indicate that the amount of radon (Rn) in the water under the surface of the Earth waxes before an earthquake.
    实验数据似乎表明，地震前地下水中氡的含量会增高。

6. Even trees live longer than people, and the Earth itself is far older.
    连树也活得比人长，而地球本身就更是个老寿星了。

7. By comparison, relatively little is known about the internal structure of the earth.
    相形之下，对于地球内部结构则了解得较少。

8. But suppose the earth could be covered with sensors spaced one foot apart, rising at one-foot intervals all the way to the top of the atmosphere.
    假设地球上可以布满传感器，每个相隔1英尺，并按1英尺的间隔从地面一直排列到大气层的顶端。

9. Because the Moon has only an eightieth of the Earth´s mass,
    因为月球的重只有地球的1/8，

10. Because the gravity on the Moon´s surface is only a sixth of Earth´s (remember how easily the Apollo astronauts bounded along),
    由于月球表面的重力仅是地球表面的1/6 -- 还记得阿波罗飞船中的宇航员累松地跳跃 --