"special relationship" in Chinese (Simplified)
Definition
“特殊关系”指的是两个人、团体或国家之间独特、重要且不同于普通关系的联系，通常因为有强烈的情感、个人或战略纽带。
Usage Notes (Chinese (Simplified))
常用来指特别重要和密切的联系，无论是个人（如友谊、家庭）还是在外交（如国家、组织）上。在政治上，常常专指国家间的紧密合作，比如英美“特殊关系”。生活中较为口语，在外交上较正式，不仅指浪漫关系。
Examples
They have a special relationship because they trust each other deeply.
他们之间有一种**特殊关系**，因为他们非常信任彼此。
The two countries share a special relationship in trade and defense.
这两个国家在贸易和防御上有**特殊关系**。
Our teacher has a special relationship with her students.
我们的老师和学生有**特殊关系**。
Despite their differences, the two leaders maintained a special relationship that benefited both countries.
尽管有分歧，两位领导人还是保持了**特殊关系**，这对两国都有好处。
People always say twins have a special relationship that others can’t understand.
人们总说双胞胎之间有种别人理解不了的**特殊关系**。
After working together for years, they've built a special relationship based on mutual respect.
多年来的合作让他们建立了以相互尊重为基础的**特殊关系**。