expense和cost都有消费 费用 代价的意思,但是expense还有予算 开支 结算的专门用途,而cost还可用于吃亏 损失的特除用途.因此expense多用于正式场合,而cost多用于口语.
cost可以做动词,而expense 强调"费用;支出;经费"
cost 可以做动词,cost sb.......,强调"成本"
expense 强调"费用;支出;经费"
I don't think we can afford the expense.
He said the office expenses were too big.
前面用于“开销”,后者指的很广。