general instruction短语¹⁴⁴⁹⁷²⁺² 基本例句 宏普通指令 First of all, general instruction of posting processing center and the difference between posting processing center and common logic center are presented in this paper. 首先对邮件处理中心进行概述，提出邮件处理中心与一般物流中心的区别。 fabiao