random analysis

例句：

1. 1. The random selection of the winners was based on a lottery system.
   随机选择获奖者是基于抽奖系统。
2. 2. She decided to go with her random choice of outfit.
   她决定穿她随意挑选的衣服。
3. 3.The randomness in the weather patterns can be quite unpredictable.
   天气模式的随机性可以相当不可预测。