Some Asian countries planted rubber trees many years ago.

一些亚洲国家许多年前就开始种植橡胶树。

After Mendes' death, Brazil's government created areas where rubber trees would be protected.

门德斯去世后，巴西政府设立了橡胶树保护区域。

By the 1970s, some Brazilian landowners started selling the parts of the forest with a lot of rubber trees.

到了20世纪70年代，一些巴西土地所有者开始出售有大量橡胶树的部分森林。

There are hundreds of related plants, including rubber trees, trees that produce castor and tung oil, and the cassava, a root crop.

大戟属植物多达数百种，包括橡胶树、各种产蓖麻油和桐油的树木，以及木薯这类块根作物等。

Some of that will be natural rubber obtained from the sap of rubber trees.

其中一些将是从橡胶树的汁液中提取的天然橡胶。

People get natural rubber from rubber trees as a white, milky liquid, which is called latex.

人们从橡胶树上获取天然橡胶，呈白色乳状液体，称为乳胶。

The company makes these from latex, a mixture of water and natural rubber tapped from the bark of rubber trees.

该公司用乳胶制成这些产品，乳胶是水和从橡胶树皮中取出的天然橡胶的混合物。

One idea is to make the work on the plantation more varied and profitable, by introducing other products which are compatible with continuing to grow rubber trees.

一个想法是通过引入与继续种植橡胶树兼容的其他产品，使种植园的工作更加多样化和有利可图。

But extracting latex from rubber trees wasn't their only forte — they built pyramids, were into astronomy, and carved remarkably sophisticated pieces of art including 17 huge stone heads, invented new ball sports and traded all over Central America.

但是从橡胶树中提取乳胶并不是他们唯一的强项，他们建造了金字塔，热爱天文学，会雕刻非常复杂的艺术品，包括 17 个巨大的石头头像，发明新的球类运动，在中美洲各地进行贸易。

The turkey seemed an excellent choice, since it could live amongst the trees living very well off the seeds of the rubber trees, which lie scattered all over the forest floors and are put to no other use.

火鸡似乎是一个很好的选择，因为它可以生活在树丛中， 靠橡胶树的种子生活得很好， 橡胶树的种子散落在森林的地面上， 没有其他用途。