抗议者突破了障碍。

Protesters ___broke ___through the barriers.

它突破了天花板，露出了一个奇怪的物体。

It ___broke ___through the ceiling and revealed a strange object.

她设法克服了不安全感，做了一次成功的演讲。

She managed to ___break ___through her insecurities and give a successful presentation.