/ˈpɜːrtʃəs ˈɔːrdər/ – Phrase
Definition: Đơn đặt hàng.
A more thorough explanation: an official document sent by a buyer to a seller that places an order for something. A purchase order will include details of the types of goods required, as well as the quantities and agreed prices for products or services.
Example: Aviat Networks, Inc. has received a $19 million purchase order for a public safety communications system.