名词
中文翻译：轴心
同义词：
['pivot', 'axis', 'core例句：1. The axle center of the car is where the wheels turn.（汽车的轴心是车轮转动的地方。）']
例句：
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1. The axle center of the car is where the wheels turn.
汽车的轴心是车轮转动的地方。
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2.The engine's axle center is located in the middle of the engine block.
发动机的中心轴位于发动机缸体中间。
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3.The axle center of the train is crucial for its stability.
火车的中心轴对于其稳定性至关重要。