设想一个典型的订单跟踪应用程序，假定对于大型制造公司。

Consider a typical order-tracking application, say for a large manufacturing company.

youdao

设想一个典型的订单跟踪应用程序，假定对于大型制造公司。

Consider a typical order-tracking application, say for a large manufacturing company.

youdao