啃書本

Simplified: 啃书本

kěnshūběn ㄎㄣˇ ㄕㄨ ㄅㄣˇ

    • to study hard from books
    • to bury one's nose in books

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
gnaw at books
Meaning
To study hard, bit by bit, from books. Can imply bookish study cut off from practice. Close to 'bury one's nose in books'.

Sources