英语口语8000句-（35）商业信函用语引言部分●认为对方收到了自己的信件
英语口语8000句-（35）商业信函用语引言部分●认为对方收到了自己的信件Some months ago we wrote you regarding ... *regarding关于… So far, we do not seem to have received (any) word from you... *so far至今为止If we do not he
