我是传统CR1，5月递交了P3，后来发邮件去NVC，7月7号答复是The NVC has completed the processing of this case. The case will be forwarded to the US Embassy/Consulate in Guangzhou within the next 2-4 weeks。我26号到律师那，没有收到发广通知，于是我又发邮件去NVC，28号NVC答复我说
Your inquiry has been received at the National Visa Center (NVC). The NVC has completed its processing of the visa petition you mentioned in your letter and has forwarded the petition to the assigned US Embassy/Consulate General for further processing.

As this petition is no longer located at the NVC you must resubmit your inquiry or request, and all future correspondence to the U.S. Embassy or Consulate General noted below. Also, please be sure to notify the Embassy or Consulate General of any change of postal mail or e-mail address, or any change in personal situation that may affect the applicant's entitlement to a visa.

Please visit www.usembassy.gov to determine the contact information for the appropriate U.S. Embassy or Consulate General. The individual Embassy or Consulate General website will include contact information for visa related inquiries.

请问我究竟发广了吗？谢谢

从字面意思来看，材料已经发给指定的美领馆了。
可以参考下面链接
https://www.chineseinla.com/f/page_viewtopic/t_47628.html
做好所有P3包裹里的资料后，寄回NVC,等一到两个月
『发广阶段』:NVC会发信通知美国亲属,你的移民资料于某年某月某日发到美国驻广州总领事馆(这叫是我们常说的发广)。

zf部门草包很多，出差错的时候也很多。
没办法，只有多打电话问丶催。。。