What is relationship?

relationship 关系(指人与人之间的关系,包括友谊,爱情等方面),关联

Their relationship has lasted many years.
他们的感情已经有很多年了。
The relationship between them is being improved.
他们之间的关系正在改善。

什么是关系？
如果IS和RELATIONSHIP之间有THE，就是在问上文谈及的东西之间的关系

re·la·tion·ship /rɪˈleɪʃənˌʃɪp/ Pronunciation Key - Show Spelled Pronunciation[ri-ley-shuhn-ship] Pronunciation Key - Show IPA Pronunciation
–noun
1. a connection, association, or involvement.
2. connection between persons by blood or marriage.
3. an emotional or other connection between people: the relationship between teachers and students.
4. a sexual involvement; affair.

需要权威全面的解释，为何不查英-英词典？

悬赏分：0 是对回答者和自己的不尊重，不管问题多简单~

Relationship is connections between people based on how much people know each other. But relationship is not necessarily considered as love, you may have a relationship with someone, because s/he is your relative. Over