speak out
phrasal verbspeak out (against something)
to state your opinions publicly, especially in opposition to something and in a way that takes courage 挺身（反对某事物）；公开站出来（反对） He was the only one to speak out against the decision. 他是唯一公开反对这项决定的人。 I will continue to speak out on matters of public concern. 我会继续就公众关注的事项发表意见。 He spoke out against mismanagement. 他公开站出来反对管理不善。