新旧之交,人类即将进入21世纪。21世纪将是人类更大进步和发展的世纪,也是人类竞争更加激烈的世纪,人类将开始进入知识经济时代:我们世代骄傲的四大发明,已被克隆生命坠地、机器 At the turn of old and new, mankind is about to enter the 21st century. The 21st century will be a century where humankind will make greater progress and development, and it will also be a century of more intense human race. Mankind will start to enter the era of knowledge-based economy. The four great inventions of our proud generation have been cloned to earth and the machinery