基本解釋地下排水溝，鼠道式排水溝英英字典柯林斯英英字典 an underground cylindrical drainage channel cut by a special plough to drain heavy agricultural soil mole drain劍橋字典mole drain柯林斯字典專業(yè)釋義土木建築工程鼠道式排水溝地下排水溝機械工程地下排水溝