How long does Student Pro License last?

Well, I know of the Student Pro License that cost $99 for “Annual Subscription - Win/Mac Download - Student Only” in Studica.com.

My question is, what does “Annual Subscription” mean to me? Does that mean I will lost the Pro License status once a year has passed? And that the Unity Editor will revert to Free Features-only?

Annual means the license will void itself after a year (its basically a 12 month Pro trial, including the watermark etc the pro trial has) and you will have to reregister the machine to use it again.