我只是顺便提及。

I mention it only as an aside.

顺便提及，这还不包括他的一幢新房。

Incidentally, it didn't include his new house.

顺便提及的是在影片中有一个有趣的片断。

By the way, there was an interesting episode in the movie.

其次回顾词根与词缀之间的研究情况,就目前来讲,多数汉语言学者都以名词性词根为主要研究对象,对词根是其它词性的情况只限于一般的顺便提及.

Secondly review the historical studies about etyma and affix.