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 patriots belong to one big family, whether they rally to the common cause early or late.; All patriots belong to one big family, whether they come forward early or late.
爱国一家，爱国不分先后。
Investigations have ground to a standstill because no witnesses have come forward.
调查陷入停滞，因为没有证人站出来。
Later in this service, you will be invited to come forward to receive ashes on your forehead.
在崇拜之后，您将被邀请前来，我们将会用炉灰沾在您的额头上。
They have come forward with an offer of help.
他们主动表示要提供帮助。
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。
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。
No witnesses have come forward.
没有目击证人站出来。
The people kindly made way for the poor man, so that he could come forward.
人们友好地为那个可怜的人让路，好让他走到前面来。
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？
I should have come forward to the police and told them what we'd done.
我应该去警察局自首并告诉他们我们所做的事情。