obsess
verb- [transitive, usually passive]
to completely fill your mind so that you cannot think of anything else, in a way that is not normal 使痴迷；使迷恋；使着迷 - [intransitive] obsess (about something)
to be always talking or worrying about a particular thing, especially when this annoys other people 唠叨；挂牵；念念不忘
Word Originlate 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.