shí​zǎi​hán​chuāng

to study hard for many years

Senses

十载寒窗/ 十載寒窗 shí​zǎi​hán​chuāng (also shí​zài​hán​chuāng) to study hard for many years

Used to describe a long period of diligent and difficult study, literally referring to ten years of studying by a cold window.

References

variant 十年寒窗/十年寒窗 十载寒窗/十載寒窗