原文:我们党立志于中华民族千秋伟业,致力于人类和平与发展崇高事业,责任无比重大,使命无上光荣

译文:Our Party has dedicated itself to achieving lasting greatness for the Chinese nation and committed itself to the noble cause of peace and development for humanity. Our responsibility is unmatched in importance, and our mission is glorious beyond compare.