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。 
 
- He was the only one to speak out against the decision.