I'm not convinced.我并不确定。

He was convinced that I was part of the problem.他确信问题的一部分在我。

She was convinced that her mother had been innocent.她确信她母亲是无辜的。

He became convinced of the need for cheap editions of good-quality writing.他渐渐确信, 人们对优秀作品的低价本有需求。

He was a convinced Communist.他是名坚定的共产主义者。