familiar、intimate、close与confidential这些形容词均含“亲密的”之意。
familiar : 通常指因长期交往而彼此很熟悉，像自家人一样。
- He patted her back in an overly familiar way.
他拍了拍她的背，显得有些过分亲昵。 - He doesn't like to be too familiar with his staff.
他不愿意跟员工过分亲近。
intimate : 语气强烈，指感情或思想融洽、相互知心，彼此关系亲密。
- intimate relationships
亲密关系 - The restaurant has a very intimate atmosphere.
这家餐厅的氛围很怡人。 - He's become very intimate with an actress.
他和一名女演员的关系非常亲密。
close : 语气较强，指兴趣爱好相同，因而关系密切，感情深笃。
- There weren't many people at the funeral - just close family/relatives.
葬礼上没有多少人——只有一些至亲。 - a close community
邻里关系密切的社区
confidential : 指相互之间可推心置腹、彼此信赖。
- a confidential secretary
机要秘书 - When you leave. I shall send you my confidant, a box, into which I put my confidential words.
朋友，当你离开的时候，我将送你一只盒子，那里放着我们最亲密的私语。
