64seconds公仔箱論壇/ H- Z. v! S8 Q5 I( F
6 j- d! G* y, ]! C. L0 C1 to 4 have 3floors = 48 sec
g' R* n# H' b6 K公仔箱論壇avg. 48/3 = 16sec
, ]1 I* u/ H1 ^% i; j5 Q8 |tvb now,tvbnow,bttvb3 i$ D" _7 k8 L0 m6 C, K
4 to 8 have 4floors = 16x4
( {4 O3 \6 w, w/ N! `- h= 64secs |