A few days after his advertisement appears,the mail order writer knows whether it is profitable or not.
A few days after his advertisement appears,the mail order writer knows whether it is profitable or not.
只要在广告刊登后的几天内，邮购撰文者便可知道这则广告是否具有销售力。
A few days after his advertisement appears,the mail order writer knows whether it is profitable or not.
只要在广告刊登后的几天内，邮购撰文者便可知道这则广告是否具有销售力。