十年寒窗----persevere ten years in one's studies in spite of hardships

例句：
A:Persevering ten years in one's studies in spite of hardships, Bill's dream of being a doctor has come true eventually.
经过十年寒窗苦读的努力，比尔当医生的梦想终于实现了。
B:How marvelous! I must remember to congratulate him.
太棒了！我一定记得向他祝贺。

注释:
How marvelous! 太棒了！