顺便 (shùn biàn): In passing (Adverb) — Meaning & Stroke Order

When submitting the report, please attach the relevant data charts incidentally.

When you return books to the library, could you incidentally borrow a novel for me?

He came to Shanghai this time only for the meeting and had no plans to travel incidentally.

I plan to go to the post office to send a parcel first, and then incidentally go to the supermarket next door to buy some fruit.