[] involving two people or groups who agree to help each other or behave in the same way as each other互惠的；相应的◆In case of a disaster, we have a reciprocal arrangement with another firm that uses the same computing systems.万一发生灾难，我们与另一家公司有一项互惠协定，可以共享同一个计算机系统。◆reciprocal trade between the EU and Chile欧盟和智利之间的互惠贸易▸reciprocity /ˌresɪˈprɒsəti; NAmE-ˈprɑːs-/