名词
中文翻译：曲柄
同义词：
['rhomboid', 'camshaft', "crankshaft例句：1. The car's engine is a humb that turns the wheels.（汽车的发动机是一个曲柄，它转动车轮。）"]
例句：
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1. The car's engine is a humb that turns the wheels.
汽车的发动机是一个曲柄，它转动车轮。
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2.The engineer used a humb to adjust the gears.
工程师使用一个曲柄来调整齿轮。
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3.The humb was designed to reduce friction and improve efficiency.
曲柄的设计旨在减少摩擦并提高效率。