网申问题－－关于PIN

4meUID: 2179248

Once you establish a PIN, you will be prompted for it whenever you access
the Graduate School Application Status Inquiry stystem. Within 72 hours of
submitting your application, an e-mail confirming receipt of your application will be
sent to the e-mail address you specify in the "Address Information" section of this
electronic application. The confirmation e-mail will give you not only the web
address of the Graduate School Application Status Inquiry system but also the
PIN you have chosen.
看不懂这个是什么意思,是让我自己随便设几个PIN么

AnnPengUID: 2216712

PIN=你的ID号