I am very pleased to receive your letter. Regarding your question on this issue, actually I also have noticed that a long time ago. Since shopping bags began to be in use, shopping has become simple and convenient, but the pollution caused by shopping bags cannot be ignored. Everyday there are many shopping bags wasted, whcih causes pollution. However, with the improving of peoople's consious towards environmental protection, people have begun to use environmental friendly shopping bags.
手工翻译的.放心使用.