When the land was used up or the river was dirty in one place, man moved to another place.
当一个地方的土地用完或河流变脏了，人们就搬到另一个地方。
Some factories are pouring dirty water into the river.
有一些工厂正把污水注入小河。
A bullock cart is crossing the river now, so the water is dirty and it can't be drunk.
一辆牛车正在过河，所以河水很脏，不能喝。
In recent years the flow of the river has slowed to a dirty trickle as fresh water running into the river has been replaced with sewage.
近年来，约旦河的流速因肮脏的河水而减缓，因为注入这条河的纯净水变成了像下水道一样脏的污水。
Many experts advise common sense. "We don't want to say to children, 'OK, play by the dirty river bank and catch whatever you can,' " says Dr. Weinstock.
很多专家都推荐一种常识，“我们不会对孩子说，好，去那个脏水沟边玩吧，随便你抓什么。
The trees were not that numerous the roads became bigger while there was less place for the river I saw some dead fish in the river the water was dirty the river pollution was so serious!
树没以前的多，道路变得宽阔，然而河道却变得窄些了，我看到河中有一些死掉的鱼，河水是如此的脏，河流污染是如此的严重！
At the west end of Narrow Canyon, the Dirty Devil River joins the lake from the north.
窄峡谷(Narrow Canyon)的西端，有脏魔河(Dirty Devil River)由北汇入湖泊。
A lot of trash floats in that dirty river.
许多垃圾漂浮在那条肮脏的河里。
The river becomes very dirty, so I couldn't swim in it anymore.
河水变得非常脏，所以我再也不能在里面游泳了。
Second, we can ride a bike or walk to the school and work... Third, we shouldn't throw the dirty water into the river.
其次，我们可以骑自行车或步行到学校和工作…第三，我们不应该把脏的水扔到河里。
They can play with neighbors children, play in the river, the grassland, get dirty and be children.
他们可以与邻居的孩子玩，在河边，草地上玩耍，弄脏自己。
The sky wasen't blue anymore, the river became dirty and there was fewer and fewer trees.
天空不再蓝，河水变的脏了，这里的植物也越来越少。
It is like the sea, receiving the dirty river and remaining pure.
就像大海，接纳浑浊的河流，同时保持清澈。
The river is becoming so dirty that no living things can live in it.
河水变得如此的肮脏以致于生物不能生存。
The river has become very dirty. Lots of fish have died.
河变得很脏。大量的鱼都死掉了。
The sky was grey, the river was dark and the streets were dirty.
天是灰蒙蒙的，河水是黑色的，街道很脏。
But now when I went back to my hometown, the river was very dirty, the water was light yellow and there were so many rubbish floating in the river.
但是现在当我回到家乡，河水很脏，水是淡黄色的，有很多垃圾漂浮在河里。
People must be stopped from throwing dirty things into the river.
应阻止人们往河里扔脏东西。应阻止人们往河里扔脏东西。
People must be stopped from throwing dirty things into the river.
应阻止人们往河里扔脏东西。 。
People must be stopped from throwing dirty things into the river.
应阻止人们往河里扔脏东西。
People must be stopped from throwing dirty things into the river.
应阻止人们往河里扔脏东西。
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