耿耿于怀
热心网友
stick in sb's throat这个短语的意思是：“使某人耿耿于怀”，主语是事物；take sth hard to heart耿耿于怀，侧重重视某事或为某事担忧；take sth/sb hard to one's heart耿耿于怀，侧重喜欢或者宠爱某物或者某人；with a feeling of bitterness/resentment/regret语气较重，有愤然不满的意思。
热心网友
Deeply concerned at heart
热心网友
suffer from an obsession