They cut down many trees every year.
他们每年砍下很多的树。
But now, people cut down many trees.
但现在，人们砍伐许多树木。
People cut down many trees, so the elephant homeless.
人们砍掉了许多树，所以大象无家可归。
So he cut down many trees, the big tree in front of their house included.
他砍了许多树，也包括门前的这棵大树。
Because many people without authorization, cut down trees and trees, so nature was damaged.
正因为许多人擅自砍伐树林和树木，所以大自然被破坏。
We know that if too many trees are cut down, forests will disappear.
我们都知道如果砍伐太多的树木，森林就会消失。
Today, too many trees are still being cut down in the USA.
今天，在美国仍有大量的树木在不断地被砍伐。
People cut down too many trees and leave rubbish everywhere.
人们砍伐很多的树木、到处乱扔垃圾。
We should not cut down too many trees.
我们不应该砍太多的树。
Many trees are cut down to build more factories.
许多树木被砍伐，建立更多的工厂。
The disadvantages of many cut down trees.
砍伐树木的坏处很多。
So many trees will be cut down, and more large cities will be set up.
于是大片森林被砍伐，更多的大型城市开始建立。 。
大片森林将被砍伐。
So many trees will be cut down, and more large cities will be set up.
所以很多的树木会被砍伐，更多的大型城市会被设立。
Many trees were cut down several years ago and the animals lost their home.
几年前，许多树木被砍伐了，动物们失去了它们的家园。
How many trees shall we cut down next year?
第二年，他砍伐了更多的树。
At present, many trees are cut down and used to make chopsticks.
目前很多树都被砍下用来做筷子。
If people cut down forests, many trees and other plants will disappear forever.
如果人们砍伐森林，很多树和其它植物将会永远消失。
太多的树被砍掉了。
Many trees were cut down to make room for the new road.
很多树木被砍倒以便腾出地方来修建公路。
我们砍伐太多的树木。
We know that if too many trees are cut down, forests will disappear.
假如没有节制的砍伐太多的林木，森林将会消失，这个我们都知道。
We know that if too many trees are cut down, forests will disappear.
假如没有节制的砍伐太多的林木，森林将会消失，这个我们都知道。
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