Definition
To be completely engrossed in reading a book; to be deeply absorbed in reading.
埋顶读书
He always has his head buried in a book, barely noticing I came in.
他总是埋头于书本之中，几乎没注意到我进来了。
Before the exam, she had her head stuck in a book all day long.
考试前，她一整天都埋头于书本之中。
When I saw him, he had his head buried in a book, completely oblivious to everything around him.
当我看到他时，他正埋头于书本之中，完全没注意到周围的一切。