random phenomenon

例句：

1. 1. The results of the experiment were random, so we cannot predict the outcome.
   实验的结果随机，所以我们无法预测结果。
2. 2.The weather was random, with sunny and rainy days happening at different times.
   天气是随机的，晴天和雨天交替出现。
3. 3. The lottery numbers are random, so each draw has an equal chance of winning.
   彩票号码是随机的，所以每次抽奖都有相等的机会中奖。