Why do people get headaches in a
crowded, stuffy room? Because they are
breathing bad air. People who breathe bad
air for a long time can get really sick. They
may even get lung cancer and die. People
need fresh air. Fresh air cleans the blood.
For our health's sake, we should all, there-
fore, do our part to fight against air pollution.
空氣污染
為什么人們在又擠又悶的房間中會頭疼呢?因為他們呼吸著
惡劣的空氣。凡是長時間呼吸惡劣空氣的人可能會生重病。他們
甚至可能得肺癌死去。人們需要新鮮空氣。新鮮空氣能凈化血
液。為了健康起見，我們每個人都應(yīng)該盡一己之力為反對空氣污
染而努力。
crowded, stuffy room? Because they are
breathing bad air. People who breathe bad
air for a long time can get really sick. They
may even get lung cancer and die. People
need fresh air. Fresh air cleans the blood.
For our health's sake, we should all, there-
fore, do our part to fight against air pollution.
空氣污染
為什么人們在又擠又悶的房間中會頭疼呢?因為他們呼吸著
惡劣的空氣。凡是長時間呼吸惡劣空氣的人可能會生重病。他們
甚至可能得肺癌死去。人們需要新鮮空氣。新鮮空氣能凈化血
液。為了健康起見，我們每個人都應(yīng)該盡一己之力為反對空氣污
染而努力。