n.不存在；不存在的事
existence───n.存在，实在；生存，生活；存在物，实在物
non───adv.非，不；n.（Non）（美、泰）嫩（人名）
self-existence───自我生存；自我存在
eudaemonic existence───幸福存在
contemplating existence───思考存在
ignoble existence───卑鄙的存在
non statement───非声明
non sequitur───不合理的推论或结论；n.<拉>不合逻辑的推论
non adherent───非粘连的
Locke was the man, John Locke. Two hundred years ago - more than that, even in his' Essay concerning the Human Understanding, 'he proved the non - existence of innate ideas.───是洛克，约翰·洛克两百年以前。甚至更早以前，在他的论文《论人的理解》里他已经证明了没有与生俱来的意念。
In Tristan and Isolde, this release from life is achieved by the self-sacrificial love of a woman who is prepared to share her lover’s non-existence and unite with him in death.───在瓦格纳歌剧“特里斯坦与伊索尔德”中，生命的的释放是由一个女人自我牺牲的爱来完成的，她准备好分享她所爱之人的虚无，并与他在死亡中结合。
As an example, Listing 2 can leverage the existence or non-existence of positional parameters to provide a helpful usage message if you specify no arguments.───例如，如果您未指定任何参数，则清单2可以利用位置参数的存在性或非存在性来提供有帮助的用法信息。
One of the central issues was the existence or non-existence of a free market.───核心问题之一就是：自由市场到底存在与否。
Furthermore the human ancestors associated with such ascensions went into a void of non-existence.───而且，与此类提升相关的人类祖先进入了非存在的虚空之中。
The sense of a proposition is its agreement and disagreement with possibilities of existence and non-existence of states of affairs.───命题的意义是它与事态的存在和不存在的可能性符合和不符合。
Do not allow non-existence of the right to exist. neither has a duty to long-term non profit phenomenon.───不允许无责之权存在.也不能让有责无利现象长期下去。
These issues, in tandem with the non-existence of a sound IT governance approach, led to a crisis of credibility between business and IT.───这些问题加上可靠IT治理方法的缺乏，导致了业务与IT之间的信誉危机。
These men maintain that existence is only apparent; non-existence is the only true reality.───这些人坚称存在只是表面的；不存在才是唯一的真实。