[; ]the act of using sth in a careless or unnecessary way, so that it is lost or destroyed浪费◆The report is critical of the department's waste of resources.报告批评了这个部门对资源的浪费。 [] a situation in which it is not worth spending time, money, etc. on sth白费；糟蹋◆These meetings are a complete waste of time.这些会议完全是浪费时间。 [] (alsowastes) [] materials that are no longer needed and are thrown away废物；废料⨁household / industrial / radioactive / toxic waste家用／工业／放射性／有毒废料