订货单；订购单的英文

• purchasing order

• 订货单:    order for goods; order form
• 订购:    order; place an order for st ...
• 单:    singular number fate; destin ...
• 订购单:    order blank; order form noun; p/o (pruchase order); purchase orders; subscription warrant
• 订货；订购:    book; booking; book； booking