de·fec·tion
noun/dɪˈfekʃn/
/dɪˈfekʃn/
[uncountable, countable]- defection (from A) (to B) the act of leaving a political party, country, etc. to join another that is considered to be an enemy
背叛；叛变；投敌 - There have been several defections from the ruling party.
执政党已有好几位党员倒戈。
- There have been several defections from the ruling party.