A protest is the act of saying or showing publicly that you object to something. 抗议
verb [vt. 及物动词] (公开)反对,抗议;坚决表示,严正申明;<法律> 声明拒付(账单),拒付(protest 的现在分词)
Students were protesting at overcrowding in the dorms. 学生们抗议宿舍里过度拥挤。