密切关系

• affinity
• intimacy

例句

1. 亲密关系由性质或特征形成的关系；密切关系
   Relationship by nature or character; affinity.
2. 汉字与日文之间有密切关系。
   There is an affinity between Chinese and Japanese character.
3. 这事与他有密切关系。
   The matter concerns him nearly.