百年征程波澜壮阔，百年初心历久弥坚
Its 100-year journey surges forward with great momentum. Its original aspiration remains even firmer one hundred years later.
波澜壮阔，汉语成语，原指形容水面辽阔，现比喻声势雄壮或规模宏大。出自南朝宋文学家鲍照创作的骈体书信《登大雷岸与妹书》。历久弥坚，汉语成语，意思是经历时间越长久，越显得坚定不移。
权威用例
2021年是中国共产党百年华诞。百年征程波澜壮阔，百年初心历久弥坚。
2021 will see the 100th birthday of the Communist Party of China. Its 100-year journey surges forward with great momentum. Its original aspiration remains even firmer one hundred years later.
——习近平主席2021年新年贺词（双语全文）
