劍橋詞典a part of a machine that, when operated by the foot , gives the power to turn a wheel in the machine （帶動機器中輪子轉(zhuǎn)動的）踏板 My grandmother still uses her old treadle sewing machine . 我奶奶仍然用著她那臺老掉牙的腳踏縫紉機。 返回 treadle