亲爱的青年朋友:你们好!春甫去,夏又至。我向你们致以最亲切的问候!你们生活在一个伟大的时代,一个向知识经济转移的时代。知识的扩展从未像今天这样日新月异,从未像今天这样令人新奇,知识也从未像今天这样在社会经济、百姓生活中发挥着如此重要 Dear young friends: How are you! Spring is gone, summer is again. I would like to extend my cordial greetings to you! You are living in a great era, an era of transfer to the knowledge economy. The expansion of knowledge has never been as rapid as it is today. It has never been as novel as it is today. Knowledge has never played such an important role in the social economy and people’s lives as it does today.