名词
中文翻译：旋转轴
同义词：
['pivot', 'axis', "pivot point例句：1. The car'saxle is worn out", "andit won't start.（这辆车的轴磨损了，无法启动。）"]
例句：
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1. The car'saxle is worn out, andit won't start.
这辆车的轴磨损了，无法启动。
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2. The scientistused an axle to measure thedistance between two points.
科学家用一根轴测量两点之间的距离。
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3. The axle ofthe wheel is what allows it to turnsmoothly.
车轮的轴是使它能够平滑转动的关键。