限制塑料袋的使用Limiting the Use of Disposable Plastic Bags

Plastic bag was once called as the most useful invention in the 20th century and it was disposable in our country in the past few years. 塑料袋被认为是第二十世纪最有用的发明，我国在过去的几年里就开始的一次性使用品。 How...