that taxi did not go by, 

and that driver was momentarily distracted. 

And that taxi hit Daisy. 

 

But,life being what it is,a series of interesting lives and incidents,out of anyone's control. 

 

如果只有那么一件事情没有按原样发生的话 

如果那个朋友鞋带没有松 

如果那辆货车提前几分钟开走