建议人们对垃圾进行分类，使垃圾更容易回收。
People are advised to sort their rubbish to make it easier for the waste to be recycled.
更为重要的是，减少垃圾的产生量，对产生出来的垃圾进行科学地分类和回收。
The invention and the use of the environment-friendly garbage bags is only one aspect; the more important thing is reducing waste production, classifying and recycling the garbage scientifically.
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