1. The forests cannot clean the air fast enough.
    森林已不能及时清洁空气。

2. The plane blasted into the air like a bullet shot out of a rifle, and soon we were at 2,000 feet and climbing.
    飞机像离膛的子弹射入空中，很快我们升到了2,000英尺的高空，并在继续爬升。

3. Trailing behind us were white stripes created by heat from our exhaust hitting sub-zero air.
    在我们的身后，拖着一道道白色的尾巴，那是我们的排气口放出的热气与低于零度的大气相遇而形成的。

4. Taking directions from my "coach", who was standing at the bottom of the tower, I tightened my helmet, closed my eyes and leaped into the air.
    "教练"站在高塔下面指点，我照着他的话，紧了紧头盔，闭上双眼，纵身一跃。

5. Over time, people starve themselves of both food and air, effectively weakening and hooking their children, eventually killing themselves.
    久而久之，人们不但缺少食物，而且还缺少空气，这样不但大大地削弱了孩子们的体质，还使他们染上了烟瘾，最终还会致他们于死地。

6. Nylon is made from coal , water and air.
    尼龙是用煤、水和空气制成的。

7. No,but I will put it out in the sunshine to let it air out.
    不,但我将把它拿到外面的阳光下晾干.

8. Riding on its air cushion over a single rail, which it never touches, at speeds up to 300 m.p.h.
    靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。

9. Notices forbidding the open-air drying of clothes, or the use of water points for car washing,
    禁止露天晒衣服、禁止用水龙头冲洗汽车的布告

10. Now governments and businesses realise bad air and water pollution affect everyone, making it difficult for cities to survive and for businesses to make a profit.
    如今，政府和企业都认识到，受到污染的空气和水会危害每一个人，会使城市难以生存，公司无利可图。