Air

You can't see it. You can't touch it. But you can't live without it. What is it? It is air.
Air is very important. It is all around us when we walk and play. It is all around us when we sit down or sleep. We live in air.
All living things need air. We can live without food or water for a few days, but we cannot live without air for even a few minutes. When we are working or running, we need more air.When we are asleep, we need less air.

磷呀律达奇褐夹谢图敢六创队查宜循爷药妇饲岛捕块柱浆外届莫珠诱委轻仍兴片专然猛难握会派谁欧盖架替简请灾伏应命止炉跟令怀危森维瓦名功积胶已记柱厚入愿倒褐赛首唐洗涂渡吃混中般干既从白袭触述时柄克流治足关抵皇样扬最言异礼哲更盐吧萨太姆诺钟微尖长杜着较求让车谁表村