n.星云的；云雾状的；模糊的；朦胧的

The nebulous nature of the policy has caused confusion among the public.
这项政策的不确定性已经引起了公众的困惑。
The nebula in the sky was a stunning sight, visible to the naked eye.
天空中的星云是一道令人惊叹的风景，肉眼可见。
His future plans are still nebulous; he hasn't decided on his career path yet.
他的未来计划还很模糊，他还没有决定他的职业道路。
The nebulous concept of happiness is different for everyone.
幸福这个模糊的概念对每个人来说都不同。
The nebulous boundary between science and pseudoscience can be hard to define.
科学与伪科学之间的模糊边界很难界定。
The nebulous cloud of uncertainty surrounded the outcome of the election.
选举结果的不确定性形成了一团模糊的乌云。
The nebulous idea of world peace has been elusive for centuries.
几个世纪以来，世界和平这个模糊的理念一直难以实现。
The nebulous feeling of nostalgia is often triggered by old photographs.
对旧照片的怀旧感往往是一种模糊而复杂的情绪。
The nebulous line between art and entertainment is becoming increasingly blurred.
艺术与娱乐之间的模糊界限正在变得越来越模糊。
The nebulous quality of her voice added to the dreamy atmosphere of the song.
她那模糊不清的嗓音为歌曲增添了一种梦幻的氛围。