当演讲者宣布取消音乐会时，观众中立刻爆发出一阵喧闹声。

There was an ___uproar from the audience when the speaker announced the concert cancellation.

校长突然宣布取消假期，这在学生中引起了轩然大波。

The principal's sudden announcement to cancel the holiday caused an ___uproar among the students.