64secondsTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。+ ?! t$ Y' F( V
tvboxnow.com" G6 ?+ X$ L2 p2 P, @ T4 S# Q
1 to 4 have 3floors = 48 sec- O9 \& \$ g, O# L8 o& y* r4 n7 j
avg. 48/3 = 16sec
0 U% l4 m$ c5 ptvboxnow.com9 t+ A( L1 |$ {9 i) f4 O
4 to 8 have 4floors = 16x4- G& M6 W0 E2 a: W4 i: Y# v( m
= 64secs |