Read Edit View history 笔芯 bǐxīn pen refill Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 笔芯/ 筆芯 bǐxīn pen refill pencil lead or a refill for a ballpoint pen Edit Delete References Add reference variant 笔芯/筆芯 → 笔心/筆心 Edit Delete variant 笔心/筆心 → 笔芯/筆芯 Edit Delete