1. As a result, air would be cleaner than in today´s cities.
    因此，空气会变得比现今城市里的空气还洁净。

2. And all around the earth is a blanket of air, many miles thick.
    地球四周是一层许多英里厚的空气，

3. Air Marshal Goering's bomber pilots were sure of their ultimate triumph over England.
    空军元帅戈林手下的轰炸机飞行员们深信, 他们会最终战胜英国。

4. And Edward R. Murrow went on the air, saying in his deep, steady voice, "This is London."
    爱德华·R·默罗用低沉而平稳的声音开始广播："这是伦敦。"

5. Afraid to look at the score-board, I watched Ron's face. Suddenly he leaped into the air, the crowd cheered, and I knew I'd won — two gold medals, one for the three-meter springboard, one for the ten-meter platform.
    我不敢看计分牌，我看着罗恩的脸。突然他跳了起来，人群欢呼了起来，我知道自己赢了--两枚金牌，一枚三米跳板金牌，一枚十米跳台金牌。

6. About 200 million years ago, warm-blooded animals took to the air — the first birds.
    大约2亿年前，温血动物开始在天空中飞翔——它们是最早的飞鸟。

7. At 2 PM on December 5, 1945, five Navy aircraft took off in perfect flying weather from a naval air installation in southeastern Florida, on a routine training mission over the Atlantic Ocean.
    1945年12月5日下午两点，天气非常适合飞行，五架海军飞机从佛罗里达州东南部的一个海军飞行基地起飞，在大西洋上空作一次例行飞行训练。

8. "When you start pulling G's," he reminded me, referring to gravity forces, "your G-suit will fill with air automatically."
    "当你拉动G服时，"他提醒我道（G指的是重力），"你的重力服就会自动充气。

9. Seeing a cake flying through air, a lorry-driver who was drawing up alongside the car, pulled up all of a sudden.
    一个正把车开到那车旁边的货车司机看见一块蛋糕从空中飞来，突然把车刹住。

10. Sound travels through the medium fo air.
    声音通过空气作为媒介传播.