那对情侣的分手让他们的朋友都很惊讶。

The couple's ___breakup surprised all their friends.

岩石的破碎是由多年的风化作用造成的。

The ___breakup of the rock was caused by years of weathering.

公司管理层的彻底分裂导致了整个项目的失败。

The complete ___breakup of the management team led to the failure of the entire project.