PD by definition, please read why77's reply.
Don't need to worry about blank on PD column. It is normal.
• 接着问,Pjiang 老师,小白兔老师!!! -xiao_fang2008- ♀ (181 bytes) () 09/16/2008 postreply 10:32:05
• yes回复:接着问,Pjiang 老师,小白兔老师!!! -moneything- ♀ (0 bytes) () 09/16/2008 postreply 12:48:17