可能是: Portal 2 DLC #2-n Is not FreeFreeFree
当然, 也可能是全FREE或有数个FREE. 因为Valve说了一句:
And they're not changing their ways now: read on for full details on the first free DLC pack coming to Portal 2!
有First, 就有Second啦XD
(我没L4D2我神马也不知道)


字面意思是"P2第一个DLC是免费的免费的免费的"