protesting against 抗议
protesting crowd 抗议人群
protesting movement 抗议运动
A: Why is the crowd protesting?
A：为什么人群正在抗议？
B: They are protesting the unfair treatment.
B：他们正在抗议不公平的待遇。
1) 表示抗议
2) 表示反对
3) 申辩/辩解
1. 抗议，反对
verb
1. to express strong disagreement or disapproval of something.
Synonym: object, oppose