n.发动机；引擎；机车；火车头
vt.给 ... 装引擎
What's the cubic capacity of this engine? 这台发动机的立体容积是多少？
There must be something wrong with the engine of my car. 我汽车的引擎一定是出故障了。
Industrialization is the most important engine of economic growth. 工业化是经济增长最重要的拉动因素。
There was a puff of steam from the engine before it stopped. 机车喷出一股蒸气后就停了下来。
Smoke rises from the engine as the train climbs a hill. 火车向山上爬着,浓浓的烟雾从火车头升起。
