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.
2 ]$ A. a8 ^# O3 X+ @& Y/ {" l公仔箱論壇# L4 N- R0 A/ |9 ~; W
the possibiolity is endless which will make it impossible to repeat the experiment. |