中华人民共和国成立以来的50年，是中国历史发生翻天覆地变化的50年，是经历很难曲折、战胜种种困难、不断发展进步的50年．是中华民族扬眉吐气、独立自主、在国际事务中日益发挥重要作用的50年。“中华人民共和国是打了22年仗才建立起来的，是在被封锁、制裁、孤立中成长起来 The 50 years since the founding of the People’s Republic of China have witnessed 50 years of earth-shaking changes in Chinese history. They have experienced 50 years of difficult twists and turns, overcoming all kinds of difficulties and continuously developing and progressing. It is 50 years since the Chinese nation became proud and independent and played an increasingly important role in international affairs. "The People’s Republic of China was established only after it hit the battle of 22 years and grew up in a blockade, sanctions and isolation