for the glass fragment to strike her, the glass has to be smash at a precise speed and precise angle with a precise orientation, and possibly if the glass has any pre-existing defect.
+ ]; ~9 ~' l; U' C: N% n8 t7 g9 H$ ptvb now,tvbnow,bttvb
9 w* G7 T( O9 R2 a/ J公仔箱論壇the possibiolity is endless which will make it impossible to repeat the experiment. |