英语时间段
[摘要]：英语时态中哪些可表示时间点哪些可表示时间段或者可表示时间...Since 用来说明动作起始时间,for用来说明动作延续时间长度.I have lived here for more than twenty years.I have lived here since I was born..M。
英语时态中哪些可表示时间点哪些可表示时间段或者可表示时间...
Since 用来说明动作起始时间,for用来说明动作延续时间长度.I have lived here for more than twenty years.I have lived here since I was born..M。