介绍： If you pay for something in installments, you pay small sums of money at regular intervals over a period of time, rather than paying the whole amount at once.
-Upper-bracket taxpayers who elected to pay their tax increase in installments must pay the third installment by April 15.

介绍： If you pay for something in installments, you pay small sums of money at regular intervals over a period of time, rather than paying the whole amount at once.
-Upper-bracket taxpayers who elected to pay their tax increase in installments must pay the third installment by April 15.