- 十年寒窗 shíniánhánchuāng to study hard for many years (idiom)To study diligently for a long time despite hardship; typically refers to many years of dedicated, lonely study in preparation for exams
- 十载寒窗 shízǎihánchuāng to study hard for many yearsUsed to describe a long period of diligent and difficult study, literally referring to ten years of studying by a cold window.