在许多国家，再生资源的回收利用已经成为一个十分重要的产业。

In many countries, recycle of renewable recourses has become a very important business.

youdao

在许多国家，再生资源的回收利用已经成为一个十分重要的产业。

In many countries, recycle of renewable recourses has become a very important business.

youdao