as与while区别

问题描述:

as与while区别

while 后面接延续性行为,但这个动作肯定和主句动作时间不一样长.如:he was talking to me while he was watching the TV.应该说“看电视”比“谈话”时间长.而as通常两个动作一直相随,很可能时间相同.如:he was th...