A2 a machine that uses the energy from liquid fuel or steam to produce movement发动机;引擎
also locomotive the part of a railway train that pulls it along机车,火车头
something that provides power, often economic power, for other things动力,推动力(常指经济动力)
More examples
Tell the mechanic that the engine was making a strange grinding noise.
It's fairly simple to modify the engine to run on lead-free fuel.
The plane's engine failed and the pilot was forced to bail out.
My car engine overheated because the water had leaked out of the radiator.
The boat was about a mile from the shore when the engine suddenly died.
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