aleatory variable

例句：

1. 1. The lottery is a game ofaleatory chance.
   彩票是一种基于运气的游戏。
2. 2. The stock market is driven by aleatory forces.
   股市受到随机因素的影响。
3. 3. Theoutcome of the experiment was purely aleatory.
   实验的结果完全是偶然的。