obsess
/əbˈses/verb
with obj.(一般作be obsessed)
1- preoccupy or fill the mind of (someone) continually, intrusively, and to a troubling extent迷住, 使着迷; 使心神不宁; 不停地困扰; （念头）挥之不去：
he was obsessed with thoughts of suicide
自杀的念头不时地困扰着他
as adj. obsessed he became completely obsessed about germs.他对细菌完全着了迷。
1.1
- no obj. chiefly N. Amer. (of a person) be preoccupied in this way〈主北美〉（人）对…着迷：
her husband, who is obsessing about the wrong she has done him.
她丈夫, 因她对他犯的过错而耿耿于怀。
词源
late Middle English （in the sense 'haunt, possess', referring to an evil spirit）： from Latin obsess- 'besieged', from the verb obsidere, from ob- 'opposite' + sedere 'sit'. The current sense dates from the late 19th cent.