1. No one can live without water or air.
1. 沒有人能離開水和空氣生存。
2. We should stop factories from producing harmful gases.
2. 我們應該阻止工廠生產有害氣體。
3. Many rivers and lakes are seriously polluted.
3. 很多河流湖泊已經受到嚴重汙染。
4. Without the shade from trees, Earth would get too hot to live on.
4. 沒有了樹蔭，地球將會變得太熱而不能生存。
5. We need to protect Earth because it is our home.
5. 我們需要保護地球因為它是我們的家。
6. Discharge pipes directly take pollutants away from the plant into the river.
6. 排洩管道直接將汙染物從工廠排入河流。
clean.
7. 保持清潔。
8. We should plant more and more trees in order to live better and more healthy in the future
8. 為了將來我們的生活過得更好、更加健康，我們應該種更多的`樹。
9. They throw rubbish into rivers , too.
9. 他們還亂扔垃圾到河流理去。
10. Even worse, they pour dirty water in to rivers.
10. 更糟糕的是他們排放汙水到河流裡。