Red ribbon forms a knot in the centre of the cogwheel.齿轮的中心交结着红绶.A cogwheel is placed where the wheat and rice stems cross at the base.齿轮安在下方麦稻杆的交叉点上....

n.钝齿轮，木齿铁轮...

cogwheel的音标：cogwheel的英式发音音标为：['kɒgwi:l]cogwheel的美式发音音标为：['kɑgwil]...