engine frame

例句：

1. 1.The engineer framed the question in a way that made sense to everyone.
   工程师以一种对每个人都有意义的方式来提出问题。
2. 2.The car's engine frame is made of high-quality steel.
   这辆车的引擎框架是由高质量的钢材制成的。
3. 3. He was asked to fix the engine frame of the car.
   他被要求修理这辆车的引擎框架。