incidentally

有机会in passing

• 顺便去看朋友

  visit friends in passing

• 顺便解决另一个问题

  happen to resolve another issue

• 日后顺便再办

  put it off till later

• 顺便把信给他带去

  deliver a letter to him in passing

• 你买书的时候，顺便也给我买一本。

  When you go to buy that book get me a copy as well.

• 他顺便也提起过这事。

  He raised the matter in passing.

• 顺便说一说

  say in passing

• 这不过是顺便说说罢了。

  It was just said in passing.

• 说到这里，我可以顺便提及以下事实。

  At this juncture it would be convenient for me to mention the following particulars.