He was about to teel me the news when someone patted him on the shoulder.为什么while不可以?

问题描述:

He was about to teel me the news when someone patted him on the shoulder.
为什么while不可以?

while在表示当什么什么的时候时,应该是一个持续的动作,这句话很显然是一个短暂的动作