He was a Catholic by upbringing.

他因受家庭熏陶，从小就是个天主教徒。

《牛津词典》

He had trained to be a Catholic priest.

他接受培训成了一名天主教神父。

《柯林斯英汉双解大词典》

I was baptized a Catholic.

我领洗成为天主教徒。

《牛津词典》

Rene Rivera says strong family ties and a shared Catholic faith helped people deal with the hard life in their community.

VOA: special.2010.06.21

When I was brought up as a Catholic in Brooklyn, there wasn't a temple around the corner from where I was in the sweat lodge.

我在布鲁克林天主教传统中长大时，我的地方,附近没有寺庙。

普林斯顿公开课 - 人性课程节选

This is somebody being tortured at the stake for merely existing, for having not confessed to being a Protestant or a Catholic or whatever.

那个人被毫无缘由地处决,或者由于新教徒或天主教徒的身份,或者其他什么原因而受罚

耶鲁公开课 - 欧洲文明课程节选

Tolkien was Catholic, true, but a Catholic in a distinctly Anglican setting.

FORBES: Is Fantasy a Christian Genre?

Part of my excitement came from the fact that I am Catholic -- not a perfect Catholic, but someone who tries to take my faith seriously and is still thankful to my parents for sending me to a Catholic high school that I am convinced put me on a path to the profession I love so much today.

CNN: Behind the Scenes: Thrilling day covering the pope

These include the disability of a man once ordained a Catholic priest from ever holding a seat in Parliament, and the disability of a Catholic from royal office.

FORBES: An Open Letter to Queen Elizabeth II