1. It might disappear into the air quickly -- by becoming vapor, or gas.
    也许会很快地变成蒸汽或水汽消失到空气中；

2. It is in the air that people breathe.
    人们呼吸的空气中有水。

3. I climbed the ladder, heard my dive announced, and commenced the moves that would thrust me into the air.
    我登上梯子，听到起跳的指令，便开始做跃入空中的动作。

4. I become faster and neater each day. I'm outdoors in clean air. And, contrary to what people think, I don't get dirty on the job.
    我越干越快，越干越利索。在室外干活还可以呼吸新鲜空气。而且完全不像人们认为的那样，我干的活儿其实很干净。

5. In 1871, American inventor Ives McGaffey realized that if you turned an air pump (气泵) the opposite way, you would have a machine that could pick up dirt.
    1871年，美国发明家艾夫斯·麦加菲意识到,如果将气泵的转动反个向,它就会变成一台能吸起灰尘的机器。

6. I found myself suspended in the middle of the air — held up by a 130-kilometer-an-hour blast of wind coming from an industrial-strength fan in the bottom of the tower.
    我发现自己悬在了空中--高塔底部一架工业用强力风扇吹出时速达130公里的风柱将我拖起。

7. Fresh air smells so wonderful. And it´s so quiet up here- - so peaceful and serene.
    新鲜的空气闻起来这么棒。这上面又这么安静止－－如此地平静安宁。

8. Frequent computer analyses could tell whether workers, like air traffic controllers, are seeing all activity clearly enough to monitor it properly.
    采用频繁的电脑分析，能够了解到工作人员，如飞行调度员，是否对工作全局一目了然，从而做好各自的工作。