If you say that someone is ambivalent about something, they seem to be uncertain whether they really want it, or whether they really approve of it.
例句
She remained ambivalent about her marriage...她对于自己的婚事仍然拿不定主意。He maintained an ambivalent attitude to the Church throughout his long life.在他漫长的一生中，他对基督教信仰始终是一种摇摆不定的态度。
英汉词典释义
n.
矛盾情绪；矛盾心理
She felt a certain ambivalence towards him.她对他的态度有些矛盾。She viewed her daughter’s education with ambivalence.她看待女儿的教育问题态度矛盾。The document expressed some ambivalence over the doctrine of predestination.这份文献显示出对宿命论的某些矛盾观点。