Everybody knows that there is serious problem of water pollution on the earth. Yes, water pollution is increasing.
　　Look! The water in the river is getting dirtier and dirtier. Most of fish in the water have died, and we can’t swim in the water.
　　My grandfather says, when he was very little, the water in the river was very clean. He often swam in the river with his friends.
　　That was before, but now we can’t see such clean rivers. Let’s protect the water from pollution, because we can’t live without water. The water is really important to us all.

每個人都知道地球上有嚴(yán)重的水污染問題。是的,水污染正在增加。
看!河流里的水變得越來越臟,臟。大多數(shù)的魚在水里死了,我們不能在水里游泳。
我祖父說,當(dāng)他非常小,河里的水很干凈。他經(jīng)常和他的朋友在河里游泳。
之前是,但現(xiàn)在我們不能看到這樣干凈的河流。讓我們保護(hù)水不受污染,因?yàn)槲覀儧]有水是無法生存的。水對我們所有人來說都是非常重要的。