defections
n．叛逃，变节：从一个政治、宗教、党派或其他组织中脱离，加入对立的一方。
例句
There have been several defections from the ruling party.
执政党已有好几位党员倒戈。
《牛津词典》
He was a bulwark against further Blairite defections.
他是对抗布莱尔派进一步背叛的最后堡垒。
Ms Brown's own Senate caucus recently grew by two Republican defections.
布朗女士自己的参议院党团最近吸纳了两名共和党倒戈者。
