Police have appealed for witnesses to come forward.

警方呼吁证人挺身而出。

《牛津词典》

Police have asked witnesses of the accident to come forward.

警方呼吁事故的目击者出来提供线索。

《牛津词典》

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。

www.360doc.com

"We are encouraging people who have gone to the VCTs and have known their status - because that fear has been removed - to come forward now to us and give us blood."

VOA: standard.2010.06.04

So, I could ask any of you who have the courage to come forward and fight in my phalanx? Nobody?

所以,我斗胆请问,在座哪位有胆量上来,为我的方阵效力,没人吗

耶鲁公开课 - 古希腊历史简介课程节选

He's got to come forward and take the danger and take the blows and close the line.

他必须涉险向前,冒着枪林弹雨,去填补这一排的空缺

耶鲁公开课 - 古希腊历史简介课程节选

Whistle-blowers undoubtedly face significant risk and must do cost-benefit analysis to decide whether to come forward.

FORBES: Put Your Money Where Your Mouth Is

But no one has ever been willing to come forward and acknowledge their existence.

CENTERFORSECURITYPOLICY: Center for Security Policy | Arafat’s True Colors: A Murderous Terrorist — with American Blood on His Hands