forced ignition

例句：

1. 1. The engine was forced to ignite by the sudden burst of air.
   发动机被突如其来的气流强制点燃了。
2. 2. The pilot had to force the engines to ignite before takeoff.
   飞行员必须在起飞前强制启动发动机。
3. 3. The firefighters were forced to ignite a new flame in the old fire pit.
   消防员被迫在旧火坑里重新点燃火焰。