slash fuel

例句：

1. 1. The car's engine needs a new spark plug to slash fuel efficiency.
   这辆车的引擎需要一个新的火花塞来提高燃油效率。
2. 2. The engineer used a cut-out fuel system to slash the time it took to start the engine.
   工程师使用了一种割炬燃料系统，以缩短启动发动机所需的时间。
3. 3. The firefighters used torch fuel to slash through the thick smoke and rescue the trapped victims.
   消防员们使用火炬燃料，穿过浓烟，救出了被困的受害者。