He mentioned en passant that he was going away 他顺便提到他要离开的事
2.
I would likt to say en passant how useful i found your report 我想顺便说一下，我认为你的报告很有用。
3.
Due to this discussion the term " informal " adult education became enlarged and is now comprising all phenomena of the media and daily life environment , whereby adult education almost " en passant " happens 现今对于非正式成人?育一词的讨论已经产生了扩大化的现象，举凡媒体以及日常生活环境的所有现象均涵盖于其中，成人?育亦几乎跟随著非正式成人?育的脚步前进。
