Because you cannot use 包雪梨 紙 to print (for ink-jet printer .... too 薄 .... the ink couldnot stay in...)
2006-10-27 19:09:16 補充:
key == Hi... but he is not asking A4紙....Sometime it is easier to make an example to compare .... so咩紙會薄過A4紙呢? main subject should be )) 咩紙 ((...