We are still waiting for the prevailing wage. 什么意思？

我申请的是马里兰大学，他们答应给办H1B.把所有的材料于6月1号都寄过去后，就开始等着那边的消息。30号问那边的小秘，给我的回复是 We are still waiting for the prevailing wage, which could take another couple of weeks. We will then need to post it for two-weeks. After that time, your entire H1B package is submitted to our international office for processing. 这是什么意思啊。过来人帮帮我吧，我现在非常着急。