This dispute led to the formation of a new breakawaygroup.
这次争论使一部份人另立门户，成立了一个新的团体。
2
A breakaway faction of the rebel group has claimed responsibility for the killing.
反叛团体的一个分裂出来的派别已宣称对那次凶杀负责。
《柯林斯英汉双解大词典》
3
A more plausible, though still unlikely, scenario would involve a breakaway by a group of low-debt and cost-competitive countries, centred around Germany.