1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
9 N. R$ H k" h4 p3 GTVBNOW 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。2 spilt the heavier side ping pongs in half and weight against each other
+ r7 v, v9 @! M7 D- i' g; ~tvb now,tvbnow,bttvb3 weiht either ping pongs one on one then you will know which is the heavy one. |