他们吵过架，不过现在又和好了。

They had a quarrel, but they're friends again now.

《牛津词典》

他们不过是小声抗议了一下。

They make no more than a mutter of protest.

《柯林斯英汉双解大词典》

官方一直说他们只不过是好朋友。

The official story has always been that they are just good friends.

《牛津词典》

And in fact I don't remember talking very much about the war though they had been in the war.

不过，说实话，我们并不经常,谈战争，虽然他们参加过二战。

普林斯顿公开课 - 人性课程节选

Another thing that happened-- ... they started developing-- it's not invented in the nineteenth century, but they started doing standardized forms.

当时还发生了一件事-,人们开始发展-,这不是19世纪发明的，不过他们开始制作标准化格式。

耶鲁公开课 - 金融市场课程节选

It's illegal, so they can't sign that as a contract, but they they can just agree to do it.

因为是违法的,合同也就无效了,不过他们可以私下达成默契

耶鲁公开课 - 博弈论课程节选