axis of jet stream

例句：

1. 1. Thejet stream is a powerful force that canchange direction at any moment.
   喷流是一种强大的力量，随时都可能改变方向。
2. 2. The jetstream is responsible for the weather patterns inthe region.
   喷流负责该地区的天气模式。
3. 3.The jet stream is often used to predictweather conditions.
   喷流常被用来预测天气条件。