随机性

例句：

1. 1. The results were random and unpredictable.
   结果完全随机且不可预测。
2. 2. He decided to take a random route home from work.
   他决定下班时走一条随机路线回家。
3. 3. The lottery is a form of random chance.
   彩票是一种随机机会的形式。