dredger的复数形式怎么拼写

n.挖泥船，撒粉器...

The dredger spooned up mud.挖泥船把泥挖起来.Back of the breakwater the dredger was working.在防波堤后面挖泥船正在工作.The slurry pump is one of the key facilities of a dredger.泥泵是水力输送式挖泥船的关键设备....

dredger的音标：dredger的英式发音音标为：['dredʒə(r)]dredger的美式发音音标为：['drɛdʒɚ]...