incidentallyで始まる言葉

incidentally

[副]1 付随的に，偶然に2 〔文修飾；通例文頭で〕ところで；ついでながらIncidentally, I had a complaint from a customer about you.そう...

Incidentally, I had a complaint from a customer about you.

そういえば，客から苦情が来ていたよ