irreality

例句：

1. 1. The world of virtual reality is full of unrealistic promises.
   虚拟现实世界充满了不切实际的承诺。
2. 2. The scientist's theory was based on a fundamentally unrealistic assumption.
   科学家的理论基于一个根本上不现实的假设。
3. 3. The movie portrayed the future in an utterly unrealistic way.
   这部电影以完全不切实际的方式描绘了未来。