我还觉得材料将从可循环的垃圾中获得。

I also think the materials will be made out of recycled garbage.

youdao

你会很惊奇有多少的东西是用可循环的材料做的。

It is surprising to see how many items you can buy that are made from recycled materials.

youdao

购买那些由可循环的材料做成的商品就达到了这个目的。

Buying products made from recycled materials closes the loop.

youdao

I can be a little more careful about keeping track of what goes on inside of that loop. If I don't have any more work to do, let me just stop.

我能更小心点来跟,踪循环里发生了什么,如果没什么可干的了，就停下来吧。

麻省理工公开课 - 计算机科学及编程导论课程节选