[] () to fail to do what is required by an agreement, a promise or a law违反；违背◆The group has been accused of breaching competition rules.这集团一直被指控违反竞争规则。(about a figure) to become higher than a particular amount or level（指数字）突破◆The financial index has breached the 2 000 mark.金融指数已突破 2 000 大关。