a promise is a promise是什么意思?

喜欢听cctv9的newshour
一次出现了
"For China a promise is a promise."
我不知道是什么意思,希望大家帮帮我,谢谢了!

never is a promise a promise is a promise是什么意思? iove is a utterly promise 啥意思 How important a thing it is to keep our promise! 张靓颖a promise It is a promise when I love you It is a natural ability when I paly with you. a deal is a deal 谁有God is a girl；pretty boy;promise don't come easy;蓝色生死恋英文版的歌词 What is a process? gad is a girl