从字典中得来expense的可不可数随意义而改变expensen[U]不可名词spendingofmoneyetc;cost花费;代价:anexpenseoftime,energyandcash时间、精力、现金的花费*[C]可数名词causeofspending花费的原因:Anannualholidayisabigexpense.一年一度的假日是一笔大开销.*Runningacarisagreatexpense.一辆汽车的经常开支很大.expenses[pl]moneyspentindoingaspecificjob,orforaspecificpurpose(做某工作或为某目的)花费的钱:travellingexpenses旅费*Houserepairs,holidaysandotherexpensesreducedherbankbalancetoalmostnothing.修房、度假和其他开销使她在银行的存款所剩无几.*