smear campaignnoun [ C ]
ukusa planned attempt to harm the reputation of a person or company by telling lies about them:
They accused competitors of mounting a smear campaign to drive them out of the market.
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。