He is a buck private.他是一名列兵。
Cecil can be very rude in private, though in public he is usually polite.塞西尔在大庭广众中通常很有礼貌,但私下里很粗鲁。

［同义词］ adj.  confidential, personal, secret
［反义词］ adj.  open, public
［词源］＜拉丁语privatus(属于私人的)

用作定语
▲～+n.
 It is a private car.这是一辆私家车。
Those tourists were lodged in private houses.那些旅游者寄宿在私人住宅。
The president is paying a private visit to Europe.总统正在对欧洲作私人访问。
The news about the president's private life caused a scandal.关于总统私生活的消息激起了人们的愤慨。
Some people decorate their private houses to please their own sense of beauty.有些人装饰自家房子是为了愉悦自己的美感。
用作表语
▲S+be+～
 Don't repeat what I've told you to anyone; it's private.不要向别人转述我告诉你的事,这是保密的。

private, individual, personal
这三个词的共同意思是“私人的”。
1.private指“私立的,私有的,私人的”,与“公立的,公有的,公共的”相对。
2.personal指“本人的”“亲自的,人身的”,与“由他人代表的,不涉及个人的”相对立。
3.individual强调“个体的,个别的”,与“普遍的,集体的”相对立。