noun🔗Share齿轮， 齿轮盘。 A wheel with a toothed rim, intended to engage with others, or similar equipment, to form a gear"The old clock stopped because one of the brass gearwheels had broken its teeth. "那个老钟停了，是因为其中一个黄铜齿轮崩掉了几颗齿。machinetechnicalpartdevicetechnologysystemChat with AIVocabulary GamePractice Reading
