propedalCOCA¹⁵⁵⁷⁵¹ 基本例句 🌏就是踩踏平台啦 The ProPedal knob clicks twice per setting as it turns. The first click occurs as you exit the current setting; the second click as you engage the new setting. 当转动旋钮改变每个档位时会发出两声咔嗒声，第一下是表明推出当前档位，第二下是进入下一个档位。 www.ibike.net.cn