derailing

例句：

1. 1.The train was derailing due to the sudden rainstorm.
   由于突如其来的暴雨，火车正在脱轨。
2. 2. The accident happened when the driver derailed from his usual route.
   事故发生时，司机从他通常的路线上脱轨了。
3. 3. The company's financial reports showed a derailing trend in its revenue growth.
   公司的财务报告显示其收入增长趋势出现了脱轨。