64secondstvb now,tvbnow,bttvb4 D& Z" U2 ^* |$ u% _) j
公仔箱論壇* R, ?# h9 Z; s" K
1 to 4 have 3floors = 48 sec; I5 l `" x3 T8 M) x0 z# N
avg. 48/3 = 16sec
! w1 o0 k* ^6 z X; b' e公仔箱論壇
$ U% Q8 P+ U% o A, \/ ]" e4 to 8 have 4floors = 16x4
]4 z" `: G1 E2 v# {0 o= 64secs |