incidental expense

美 [ˌɪnsɪˈdentl ɪkˈspens]英 [ˌɪnsɪˈdentl ɪkˈspens]
  • n.附带费用;非经常性杂项支出
incidental expenseincidental expense

noun

1
(frequently plural) an expense not budgeted or not specified
he requested reimbursement of $7 for incidental expenses
Synonym: incidental minor expense

数据来源:WordNet