互相英语怎么说

互相英语怎么说？
互相英语是指 "mutual" 或 "reciprocal"。
来源：
"Mutual" 来源于拉丁文 "mutuus"，意思是 "彼此的，相互的"。
"Reciprocal" 来源于拉丁文 "reciprocus"，意思是 "相互的，互惠的"。
英文例句：
They had a mutual understanding.
We have a reciprocal agreement.
The two countries have established a mutual defense treaty.
We offer a reciprocal discount to members of our partner organizations.