硼 péng borax Origin Definitions Defs Strokes Stroke Words Sentences Sents 硼酸 péngsuān boric acid boric acid H3BO3硼砂 péngshā borax 三氟化硼 sānfúhuàpéng boron trifluoride Sources Frequency data MTSU Chinese text computingSUBTLEX-CH