There are no apertures for ventilation, yet the air is fresh.

那里没有调节空气的设备，空气却是清新的。

Wind is caused by differences in the temperature of air.

风是由空气的温差引起的。

They help keep the air clean.

它们能帮助保持空气的清新。

Result The nails do not rust in the tube with air-free water.

结果铁钉在没有空气的水中没有生锈。

Who knew sugar and air could taste so sweet?

谁能知道糖加空气的味道这么甜？

So the hot aisle where it expels all the hot air.

所以它出所有热空气的热通道。

We should plant more trees and keep the air clean.

我们应该多种树，保持空气的洁净。

So heavy that he could taste it.

浓到他仿佛都能够尝到空气的味道。

Think of it like a balloon that is filled with too much air.

想像个装了太多空气的气球。

It should feel like more air is coming in than out.

呼出的空气需要少于吸入的空气。

If not, then the movement of air close to the ground will lift the soil.

否则，土壤附近空气的流动会掀起土壤。

And I've got to say, it was a breath of fresh air.

我得说，这是呼吸新鲜的空气的地方。

There's a bag above me filled with hot air.

在我头顶上方有个充满热空气的气囊。

Those are essentially whirls of air.

涡流本质上是空气的漩涡。

Then the compressor increases the pressure of the air.

然后压缩机增加空气的压力。

Your peers fly off into the sunset, as the cold evening air approaches.

随着夜晚冷空气的来临，你的同伴飞向夕阳。

And they store enormous amounts of carbon that would otherwise be released into the atmosphere.

而且储存了原本会放到空气的大量的碳。

You do not know how air tastes unless you really think hard about it.

你不晓得空气的味道，除非你使劲去想。

The temperature and the chemical makeup of air is strictly controlled.

空气的温度和化学成分是严格控制的。

This is the final destination of the inhaled air.

这是入肺空气的最终目的地。