valuable paper的意思|示意

Recycling also reuses valuable raw materials—such as aluminum and paper.

回收也会重复利用有价值的原材料，比如铝和纸。

Recycling also reuses valuable raw materials, such as aluminum and paper.

回收也会重复利用有价值的原材料，比如铝和纸。

He could not understand how people paid for food and valuable things with paper! He was also puzzled by the black stones people used to burn to produce heat.

他不明白人们是怎么用纸来买食物和贵重物品的！他还对人们用来燃烧产生热量的黑色石头感到困惑。