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This whole process is easy and environment-friendly- as one just needs to put rubbish on the lid of the garbage can, rubbish will slide down easily, and then the lid turns over again as if it is smiling and nodding to you, which relieves our embarrassment when we had to use our hands to open the lid firstly, then the rubbish could be put into the garbage can on public occasions in the past. The smiling eyes of the lovely-shaped lid also seem to be suggesting that only when we dispose of the rubbish in a reasonable and easy way, can we make our life full of smiles.
Zengcheng college of south China no
Zengcheng college of south China normal university
University of Electronic Science and Technology of China,Zhongshan Institute