I decided to learn Japanese just for fun.

我决定学日语只是为了好玩。

《牛津词典》

I decided to learn Spanish, just for fun.

我决定学习西班牙语，只是为了消遣。

《牛津词典》

I started shouting in German, just for the hell of it.

我当时开始用德语喊叫，只是为了好玩。

《柯林斯英汉双解大词典》

Take the example of Facebook. It was launched in two thousand four as a social network just for Harvard students.

VOA: special.2009.09.14

Now I want to switch gears, just for the last couple minutes, and ask you: what do you see when you read this novel?

在最后的这几分钟，我想换换话题，问问你们：，在看这部小说时,你们读到了什么？

耶鲁公开课 - 1945年后的美国小说课程节选

Just for the fact of going to live events where you have other people who are in the arts.

只是为了去现场感受活动氛围，因为那里有很多其他搞艺术的人。

想学音乐吗？ - SpeakingMax英语口语达人

And when we talk about the communities of Prudhoe Bay, they're there just for the industry.

NPR: Alaskans Speak Up About Oil Field Shutdown

He thinks the financial crisis has convinced people that investing is not just for business-school graduates.

NPR: Wall Street Too Real? Try Fantasy Investing

It's not just for a pre-match meal but to make sure we can avoid the holiday traffic.

BBC: Worcester need time says Dryden