互惠互利的英文：
reciprocity and mutual benefit

参考例句：

Reciprocity needs more communications from both countries.
互惠互利建立在两国加强沟通的基础上。

reciprocity是什么意思：
n. 相互性，相互作用，互惠主义

They have a reciprocal loathing for each other.
他们互相憎恨。

Reciprocal affection,help,trade
互爱、互助、互惠贸易

The piston is reciprocating inside cylinder.
活塞在汽缸内部往复运动。

mutual是什么意思：
adj. 相互的，彼此的；共同的

They have a mutual dislike of each other.
他们都不喜欢对方。

We were introduced by a mutual friend.
我们一个共同的朋友介绍我们认识了。

The same should be true of mutual concessions.
互让也是如此。

benefit是什么意思：
n. 利益，好处；救济金，津贴；利润
v. 有益于，受益

benefit of the doubt
裁判员对可疑情况无把握时不对有关运动员作不利判定

It is possible to overstate the benefits of stabilization.
稳定性带来的好处有可能被夸大。

The flowers were a fringe benefit.
这些鲜花可算是额外的报酬。