实在性

例句：

1. 1. Thereality of the situation is that we needto act quickly.
   实际情况是，我们需要迅速行动。
2. 2. The truthis that he lied abouthis job.
   事实是，他关于他的工作的谎言。
3. 3. Theauthenticity of the paintingwas questioned by experts.
   这幅画的真实性被专家质疑。