笔芯 bǐxīn pen refill Definitions Defs Origin Strokes Stroke Words Sentences Sents 笔芯 筆芯 bǐxīn pen refill pencil lead or a refill for a ballpoint pen Cross-References Variant of 笔心 bǐxīn
笔芯 筆芯 bǐxīn pen refill pencil lead or a refill for a ballpoint pen Cross-References Variant of 笔心 bǐxīn
