preoccupy

v. /priˈɑːkjupaɪ/ B2

使全神贯注；使心事重重

To fill someone's mind completely so they ignore other things.

仙境例句

The question of her size preoccupied Alice all the way through the wood.

一路穿过树林，爱丽丝满脑子想的都是自己个子大小的问题。