他们将投诉升级到了部门经理那里。

They ___escalated the complaint to the department manager.

他们的争论很快升级为肢体冲突。

Their argument quickly ___escalated into a physical fight.

争论很快升级为肢体冲突。

The argument quickly ___escalated into a physical fight.

由于当地无法解决这个问题，我们把它上报给了总部。

Since the issue couldn't be solved locally, we ___escalated it to the headquarters.