reciprocal

相互的、彼此的

Their friendship is built on reciprocal trust and honesty.

他们的友谊建立在相互的信任与诚实上。

互惠的、回报的

The two countries signed a reciprocal trade agreement last month.

两国上个月签署了互惠贸易协定。

倒数的数学

The reciprocal value of four is one quarter.

四的倒数值是四分之一。

倒数数学

To divide by a fraction, multiply by its reciprocal.

要除以一个分数，就乘以它的倒数。

对应物、相应之物正式

Kindness often finds its reciprocal in the people around us.

善意往往会在周遭的人身上找到相应的回报。