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