reciprocal

根據《柯林斯英漢雙解大詞典 》：

ADJ A reciprocal action or agreement involves two people or groups who do the same thing to each other or agree to help each another in a similar way. 相互的; 互惠的 [正式] ^[1] 

reciprocal relation 互反關係

reciprocal transformation 相互轉化；反向變換；倒數轉換

reciprocal relationship 互反關係

reciprocal cross 正反交；互交

reciprocal action 互相酌；相互酌；交互作用 ^[1] 

They expected a reciprocal gesture before more hostages could be freed.

他們期望在更多的人質被釋放之前有互惠的表示。

The two colleges have a reciprocal arrangement whereby students from one college can attend classes at the other.

兩所學院有一項互惠協定，允許學生在院際間選課。

The result indicates that there are reciprocal connections between the parabrachial nucleus and caudal portion of the dorsal vagal complex.

結果説明臂旁核和迷走神經背核簇尾側部之間有交互聯繫。 ^[1]