postal /ˈpoʊstl̟/ adjective Learner's definition of POSTAL
always used before a noun
: relating to or involved in the sending, handling, and delivery of mail邮政的；邮递的 -
postal workers [=post office employees]邮政人员
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Postal rates are going up.邮费在上涨。
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The city worked to quickly restore postal service.这座城市努力工作以迅速恢复邮政业务。
go postal
US, informal
: to suddenly behave in a very violent or angry way突然出现暴力行为；突然大怒 -
She suddenly went postal and started yelling at the customers.她突然大怒，开始对顾客大喊大叫。
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If he calls me this late again, I'm going to go postal on him.如果他再这么晚给我打电话，我就对他不客气了。