既成事实

例句：

1. 1. The truth isthat he lied to us.
   事实是，他对我们撒谎了。
2. 2. Thesituation has improved significantly sincethe beginning of the year.
   自年初以来，形势已经显著改善。
3. 3.He was caught in a lie by hisboss, which made him look bad.
   他被老板识破了谎言，这让他看起来很糟糕。