obsess

1. V-T/V-I If something obsesses you or if you obsess about something, you keep thinking about it and find it difficult to think about anything else. 困扰; 心神不宁

A string of scandals is obsessing America. 一系列丑闻在困扰着美国。

She stopped drinking but began obsessing about her weight. 她戒了酒，但开始不停地担心她的体重。