Romance is one thing, marriage is quite another.

爱情是一回事，婚姻却是另一回事。

《牛津词典》

That's quite another matter.

那完全是另一回事。

《新英汉大辞典》

Listening to music at home is one thing, going to hear it being performed live is quite another.

在家里听音乐是一回事，去到现场听又是另一回事。

youdao

Another 25 percent or so are not quite sure, in my view,of the intensity of their commitment to the insurgency.

VOA: standard.2009.03.11

Neurons actually look quite different from one another but this is a typical one.

尽管神经元的外形各不相同,但这是一个典型的神经元

耶鲁公开课 - 心理学导论课程节选

And it turned out that another, not quite as deadly, but still very serious disease called syphilis was also common in this part of the world at that time.

现在已知另外一种疾病,它并不完全致命但也很严重,它叫梅毒,在那时的一些地方也很常见

耶鲁公开课 - 生物医学工程探索课程节选

But their effect on the finances of most novice distributors is quite another matter.

FORBES: Why Ackman Is Right on Herbalife

Politics is one thing misleading and frightening our parents and grandparents is quite another.

FORBES: Will Obamacare Really Prohibit Active Medical Intervention At Age 70?

Putting it through the ringer and mangle for all to see is quite another.

BBC: Not standing still - devolution lessons