We presented papers. And then broke off into focus groups and critiqued each other.

我们互赠论文，然后分成讨论小组，互相批判。

youdao

And for another 20 minutes, they broke off into groups of three to work on a joint campaign.

另外一段20分钟的时间里，分成三人一组做合作项目。

youdao

When Mary broke off the engagement, John seemed to go into a flat spin.

玛丽毁除婚约，约翰似乎神经失常。

《新英汉大辞典》

Students broke off into small groups to create their own top ten questions which were then shared with the all students to debate and the favourite questions were selected.

BBC: Pupils produce questions for young sport personalities

But the engine was noisy, and there were concerns about what would happen if one of the blades broke off and tore into the aircraft's fuselage.

ECONOMIST: Monitor

Lionel Messi's through ball was intended for David Villa but when the ball broke off a defender into the path of Iniesta, he took full advantage, haring into the box and coolly firing past Andriy Pyatov.

BBC: Barcelona 5-1 Shakhtar Donetsk