incidental
🇺🇸
/ˌɪnsɪˈdentl/
🇬🇧
/ˌɪnsɪˈdentl/
happening along with something else but not the main part
The extra cost was incidental to our main purchase.
額外費用是我們主要購買附帶發生的。
happening as a natural result
The noise is incidental to living in a busy city.
噪音是生活在繁忙城市的自然結果。
a small extra thing that happens along with something else
We budgeted for travel incidentals like snacks and souvenirs.
我們為旅行中的附帶小物如零食和紀念品做了預算。