????it is important to protect our envioronment, but it is difficult to do it. today, the earth is facing many pollutions, such as air pollution, water pollution, voice pollution, and etc.??
????when you look at the sky, you can discover that it is no longer blue, it is grey. this means the air is already polluted. why? because the factory emits too much dirty air. how should we stop the air pollution? we could plant more trees to make the air cleaner.??d?oé×÷??í? www.zww.cn
????do you like swimming? i believe a lot of people like swimming. when you go to the beach, you can see that the sea the dirtier than before. do you know that lots of animals die from drinking polluted water? if we continue to pollute the water, more animals will die, and that will effect our human\ s fo