non-existence
noun/ˌnɒn ɪɡˈzɪstəns/
/ˌnɑːn ɪɡˈzɪstəns/
[uncountable]- the fact of not existing or not being real
不存在的；不真实的 - They refused to comment on the existence or non-existence of a waiting list.
他们拒绝评论等候名单是否存在。
- They refused to comment on the existence or non-existence of a waiting list.