名词
中文翻译：中心轴
同义词：
['central shaft', "central axis例句：1. The machine's center shaft is worn out.（这台机器的中心轴磨损了。）2. The car's center shaft broke during the accident.（事故中，汽车的中心轴断了。）"]
例句：
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1. The machine's center shaft is worn out.
这台机器的中心轴磨损了。
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2. The car's center shaft broke during the accident.
事故中，汽车的中心轴断了。
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3. The engineer carefully removed the center shaft to replace it.
工程师小心翼翼地取出了中心轴来更换它。