PO 详细解释

PO

abbr.

1. =Personnel Officer 人事军官

2. =postal order 邮政汇票

3. =post office 邮局

4. =purchase order 订货单

补充

POPOabbr.1.postal order 邮政汇票2.post office 邮局

例句

1. a PO box邮政信箱