来自《耶鲁大学开放课程：环境政治与法律第2集第2集》

cell phone in terms of the value of those metals,

每部手机可能只值七十五美分
there are some three dozen different metals that can be

但是从电子设备中却能提取出
extracted from electronic equipment.

三十六种不同的金属
And if they're thrown away or if they're burned,

如果扔掉或烧掉它们
the material will go up into the atmosphere or it will make

这些物质会升入大气或
its way down into the soil and the groundwater.

降至土壤和地下水
And also, the people that are doing this,

做这项工作的人们
the people that are burning the plastic off

烧掉电子元件和金属上
of the electronic components and the metals,

的塑料
they are often exposed at a high level.

长期接触这些东西
So that's a very interesting problem.

所以这个问题很有趣
How could we regulate international trade?

我们如何能规范国际贸易