Who is bullshiting?
时速30公里=9公里每秒?
所有跟帖:
• Typo, it should be 9 meter per second. -DrunkerKickass- ♂ (70 bytes) () 05/19/2011 postreply 21:44:17
• Typo, it should be 9 meter per second. -DrunkerKickass- ♂ (70 bytes) () 05/19/2011 postreply 21:44:17