[N-UNCOUNT 不可数名词]互惠;互换Reciprocity is the exchange of something between people or groups of people when each person or group gives or allows something to the other.
[FORMAL 正式]
They gave assurances they would press for reciprocity with Greece in the issuing of visas.
他们保证将推进本国与希腊两国间签证的互相发放。
Oxford
reci·procity/ˌresɪˈprɒsəti; NAmEˌresɪˈprɑːsəti/noun[uncountable ]( formal) a situation in which two people, countries, etc. provide the same help or advantages to each other 互惠;互助;互换reciprocityreciprocitiesreci·procity/ˌresɪˈprɒsəti; NAmEˌresɪˈprɑːsəti/