私下的英文：
in private

A closet proponent of a tax increase;a closet alcoholic.
增加税收的私下倡议者;私下酗酒者

Reprove your friend privately, commend him publicly.
对朋友要私下责备，公开赞扬。

The story is being whispered about.
这事正到处被人私下传开。

Sadly, a few tabloid newspapers got hold of this under-the-table gossip
更为糟糕的是几家惯于耸人听闻的报纸抓住这些私下闲谈大作文章。

A true friend is for ever a friend.--Grorge Macdonald, British novelist
要私下告诫朋友,但是要公开夸奖朋友。叙利亚拉丁语作家西拉士

A little Bird told me
有人私下告诉我

A clandestine tryst
偷偷的私下约会

The news came through private channels.
消息是私下[小道儿]传出来的。

It's only for private circulation.
这只在私下传阅。

Concealed from the public; private
幕后的，秘密的隐瞒公众的;私下的

It's the private sector, stupid!
是私人部门出了问题，傻瓜！

Ignorance is mere privation.
无知是一种纯粹的贫乏。

And death is the privation of all awareness.
死亡是对所有意识的剥夺。

regional conference on the private sector
私营部门问题区域会议

The project is funded by private enterprise.
这项工程是由私人企业提供资金的。