preoccupy
🇺🇸
/priˈɑːkjupaɪ/
🇬🇧
/priˈɒkjupaɪ/
to think or worry about something very often or all the time
His upcoming exam will preoccupy him for weeks.
即将到来的考试会让他连续几周都忧心忡忡。