noun🔗Share歯車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. "古い時計は、真鍮製の歯車の歯が欠けて止まってしまった。machinetechnicalpartdevicetechnologysystemChat with AIVocabulary GamePractice Reading
