Her salary is quite modest, but she gets a generous allowance for work-related expenses.

expenses 是名词 expense 的复数形式，expense 来自拉丁语 expendere（花费），指"花费、支出、开销"的意思。 work-related expenses 指"与工作相关的支出"，通常包括差旅费、办公用品等因工作需要而产生的费用。