短语词组短語annuity -due payable mthly 期初付年金apportionalbe annuity -due 比例期初年金annuity y due 期初年金amount of annuity due [金融]到期年金終值;期初年金終值life annuity due 應付終生年金amount of an annuity due 到期年金終值due annuity 期初付年金 返回 annuity due