[TOP]dredger dredger / ˈdredʒə(r) / noun a boat or machine that is used to clear mud, etc. from the bottom of a river, or to make the river wider 挖泥船；疏浚船 [TOP]dredger dredg·er / ˈdrɛdʒə ; ˈdredʒə / also dredge noun [C] 1. a machine or ship used for digging or removing mud and sand from the bottom of a river, lake etc 疏浚机，挖泥船 [TOP]dredgerUK ['dredʒ.ər] US [-ɚ] (also dredge) noun countable » a boat or a device which is used to dredge rivers, lakes, etc. 挖泥船；疏浚机 [TOP]dredger
1.N-COUNT 可数名词 挖泥船;疏浚船 A dredger is a boat which is fitted with a special machine that is used to increase the size of harbours, rivers, and canals.