to stop using a particular supplier, product, etc. and use a competing one 投奔（竞争对手）◆Many of their customers defected to rival firms. 他们的许多顾客转投竞争对手公司。
to leave an employer, political party, etc. to join another that is considered to be a competitor or enemy 跳槽；背叛；叛变；投敌◆Several presenters have defected from radio to TV. 好几位主持人已经从广播电台跳槽到了电视台。
▸defection /dɪˈfekʃn/
noun
[, ]◆the defection of business travellers to low-fare airlines 商务旅行者转向光顾低价航空公司▸deˈfector