They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.

他们砍伐树木并使用杀死帝王蝶毛毛虫食用植物的化学品。

They cut down trees in the forest.

他们在森林里伐木。

The loggers are working hard to cut down trees.

伐木工人们正在努力工作。

He has to cut down trees for several hours every day.

他每天都要伐木几个小时。

It was found by a logger — a person whose job is to cut down trees.

它是由一个伐木工发现的，伐木工的工作就是砍树。

People are not allowed to cut down trees.

现在人们不能砍树了.

We cut down trees to make furniture and paper.

我们伐树制作家具和造纸。

In order to protect trees, we should not cut down trees for throwaway chopsticks.

为了保护树木, 我们不应该再为了制作一次性筷子而砍倒树木.

The farmer still must cut down trees, clear a lot of land and cultivate the soil.

农民们还必须砍倒树木，清理大片土地进行耕耘。

You may cut down trees that you know are not fruit trees and use them to build siege works until the city at war with you falls.

惟独你所知道不是结果子的树木可以毁坏，砍伐，用以修筑营垒，攻击那与你打仗的城，直到攻塌了。