random primer

例句：

1. 1. The results of the experiment were random, so we can't be sure about the outcome.
   实验的结果随机，所以我们不能确定结果。
2. 2. He decided to take a random route home from work.
   他决定下班后随机选择一条回家的路。
3. 3.The lottery is a form of random chance, where the winner is chosen randomly.
   彩票是一种随机机会的形式，中奖者是随机选出的。