to badmouth
01
说坏话, 诽谤
to criticize or speak unfavorably about someone or something, often in an unfair or unkind way.
例子
She often badmouths her competitors in an attempt to gain a competitive edge.
她经常说坏话她的竞争对手，试图获得竞争优势。
The rival company badmouthed our product during the last industry conference.
竞争对手公司在上一届行业会议上诋毁了我们的产品。
