基本解釋訂購單變更請(qǐng)求詞組短語短語Purchase order change request message 訂購單變更請(qǐng)求報(bào)文purchase order change request br 訂購單變更請(qǐng)求purchase order change request更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)訂購單變更請(qǐng)求約定購買單變動(dòng)哀求