in a way that relates to someone's character and feelings

He was temperamentally unsuited to the job. 他在性情上不适合这份工作。

in a way that shows someone's mood often changes suddenly

He ran up enormous bills and acted temperamentally with the hotel staff. 他欠下了几笔巨债，对着酒店工作人员大发雷霆。

in a way that involves something working well sometimes and not working at other times

After examining my car, they said they had absolutely no idea why it has been behaving temperamentally. 在检查了我的车后，他们说他们完全不知道为什么车况时好时坏。