Word forms: 3rd person singular present tense dredges, present participle dredging, past tense, past participle dredged
VERB 疏浚;清淤;挖掘 When people dredge a harbour, river, or other area of water, they remove mud and unwanted material from the bottom with a special machine in order to make it deeper or to look for something. 疏浚;清淤;挖掘
Police have spent weeks dredging the lake but have not found his body. [VERB noun]