come forward

英 [kʌm ˈfɔːwəd]

美 [kʌm ˈfɔːrwərd]

自告奋勇; 主动提供（信息）

柯林斯词典

PHRASAL VERB 自告奋勇;主动提供(信息)
If someonecomes forward, they offer to do something or to give some information in response to a request for help.
1. A vital witness came forward to say that she saw Tanner wearing the boots.
  一位非常重要的证人站出来说她看见坦纳穿着那双靴子。

verb

make oneself visible
1. Young people should step to the fore and help their peers
Synonym:come to the forestep forwardstep upstep to the forecome out

All these people will come forward if we need them to testify?
如果需要作证的话这些人都会站出来吗？
We need the field to advance. We need them all to come forward.
我们需要这一领域不断向前发展，但愿这些制造商都能够更进一步。
Faculty and Student Council representatives will come forward to wash each other's feet.
老师和学生会代表将会上前来彼此洗脚。
More unusual is her refusal to come forward to offer her evidence.
更加怪异的是她拒绝出来向世人提供她的证据。
Those who do not come forward should be hunted down
对于那些不肯自首的罪犯应予缉拿归案。
The police have appealed to anyone with information to come forward and talk to them.
警察呼吁所有知情的人来和他们谈谈。
As I call your name, please come forward and tell us about your Christmas wish.
在我叫道你的名字时，请走到前面来，告诉我们你的圣诞愿望。
Nobody has yet come forward with any information relating to the girl's death.
还没有人出来提供关于这女孩之死的任何消息。
Gray and Hunter were the first to come forward.
格雷和亨特首先站了出来。
Police said that several people had come forward with information about the attack.
警察说已经有好几个人提供了关于这次袭击的信息。