With the rapid development of Internet, BBS, also called Web forum, has become an important platform where people express their public opinions freely.

随着互联网的飞速发展，BBS（即网络论坛）已经成为人们自由发表言论，表达民意的重要平台。

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Recognized authorities in the field were invited to express their opinions freely, with their personal approaches, about sustainable development and priorities for Brazil and the world.

UNESCO: Basic Sciences