noun🔗Share齿轮，齿轮装置 A wheel with a toothed rim, intended to engage with others, or similar equipment, to form a gear"The old clock's gearwheels turned slowly, marking the passage of time. "老钟的齿轮缓缓转动，记录着时间的流逝。machinetechnicalpartdevicesystemindustrytechnologyChat with AIVocabulary GamePractice Reading
