双边关系的英文怎么说

双边关系的英文：
twoway relationship

But some of our bilateral ties are frayed or fragile and new security challenges cloud the horizon
但是，我们的一些双边关系出现了紧张或脆弱的局面，新的安全问题扑面而来。

Their relationship flowered.
他们的关系变得更好了。

near in time or place or relationship.
时间、空间或关系上接近地。

Relationship by nature or character; affinity.
亲密关系由性质或特征形成的关系；密切关系

What is your relationship to the victim?
你是受害者的什么人?

Taiwan is a complex of intricate relationships.
台湾是个各种关系错综复杂的地方。