名词
中文翻译：四冲程发动机
同义词：
['four-stroke engine', 'four-stroke motor']
例句：
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1.The new car has a four-cycle engine that runs smoothly.
这款新车有一个运行平稳的四冲程发动机。
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2. The old truck had a four-cycle engine that was loud and noisy.
那辆旧卡车有一个发出很大噪音的四冲程发动机。
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3.The engineer replaced the faulty four-cycle engine with a new one.
工程师用一个新的四冲程发动机替换了有故障的引擎。