engines [ˈendʒinz]

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附加级

n.发动机( engine的名词复数 )；引擎；火车头；火车机车

the throaty roar of the engines 发动机的低沉轰鸣声
We are having difficulty in firing up the ship's engines. 我们很难发动这艘轮船的引擎。来自《简明英汉词典》