公用 gōngyòng HSK7 public Origin Definitions Defs Strokes Stroke Words Sentences Sents 公用电话 gōngyòngdiànhuà payphone public phone公用交换电话网 gōngyòngjiāohuàndiànhuàwǎng PSTN public switched telephone network (PSTN)办公用品 bàngōngyòngpǐn office supplies materials and equipment consumed or used regularly in offices, such as paper, pens, and staplers