邮政信箱 yóuzhèngxìnxiāng PO box Origin Definitions Defs Strokes Stroke Words Sentences Sents 邮政 郵政 yóuzhèng noun postal service postal service or postal system; the department responsible for managing mail, money orders, and related tasks信箱 xìnxiāng noun mailbox mailbox; letter box; post office box