The earth is 4,600 million years ol

The earth is 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways. Some things we've done are very good for the earth while some are bad.
Fewer trees
All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become desert, so more and more sorts of animals and plants are disappearing.
Traffic and factory pollution
In big cities, cars and buses have polluted the air. Now many people in cities have health problems. Factories have also polluted the land and the water. As a result, many rivers and lakes are now dead.

結果 (中文) 1:

地球是 46 亿岁。我们人类在地球上住了只有 35000 年，但在此期间，我们已改变了我们的星球很多很多方面。我们做过一些事情是非常好，为地球，而有些是坏的。更少的树世界各地，人们都砍掉数百万棵树。当下雨或刮风的时候，地球被取走。森林已成为沙漠，所以更多的和更多种类的动物和植物正在消失。交通及工厂污染在大城市，汽车和公共汽车污染的空气。现在很多人在城市中的有健康问题。工厂也有污染的土地和水。其结果是，许多河流和湖泊现在都死了。

結果 (中文) 3:

地球是46亿岁。我们人类已经在地球上生活了35000年，但在这期间，我们在许多方面改变了我们的星球。我们所做的一些事情对地球是非常有益的，而有些事情是坏的。更少的树在世界各地，人们砍伐了数百万棵树。当下雨或刮风时，地球就被带走了。森林已经变成了沙漠，所以越来越多的动物和植物正在消失。交通和工厂污染在大城市里，汽车和公共汽车污染了空气。现在城市里的许多人都有健康问题。工厂也污染了土地和水。因此，许多河流和湖泊现在已经死了。