This is an inspirational quote, which means studying hard in a cold window for ten years, so that one day I can leap into the Longmen, fly to the branches, become a phoenix, serve my country with my own strength and repay my parents' kindness. Don't live up to ten years' cold window. Use time to witness that your efforts will eventually be rewarded. Take dreams as a horse, live up to your youth, and your ideals can be expected.

It means that a person has studied hard for ten years at a cold window, achieved something, and finally lived up to his good years. Describe a person who has worked very hard in his studies and achieved good results. In our life, there are many roads to success, but only learning this one is a shortcut, so we must cherish the time when we can go to school and work hard, so that we can have a better life.

Ten years of cold window means: describe years of hard study. Cold window: reading in the cold window in winter.