tail of a stochastic process

例句：

1. 1. The dog's tail wagged excitedly as it chased the ball.
   狗的尾巴兴奋地摇着，它正在追逐球。
2. 2. The tail of the ship was visible through the water.
   船尾在水面上可见。
3. 3. The tail of the butterfly is its most distinctive feature.
   蝴蝶的尾巴是其最显著的特征。