求问，这个是什么情况？是因为大使馆放假了吗

2.13我上海面签当时和我说通过了


今天网上一查显示这样
Your visa case is currently undergoing necessary administrative processing. This processing can take several weeks. Please follow any instructions provided by the Consular Officer at the time of your interview. If further information is needed, you will be contacted. If your visa application is approved, it will be processed and mailed/available within two business days.


这是审查的意思吗？是因为大使馆放假的原因还是因为政审啊。。
求问