随着当代社会在一点一点的进步，发展得也越来越快，而对于社会自然资源所造成的影响还是有的，尤...

污染的意思： [wūrǎn] 1.沾染上有害物质。 2.有害物质对环境的危害：大气～。噪声～。 污染的详细解...

With the remarkable improvement of peoples living standard, people tend to buy more goods. As a result, a plenty of plastic bags ar...

Today, as the economy develops fast, people can buy what they need, the producers provide them all the new things, so the factory p...