芯

定義

1. core, heart
2. pencil lead
3. wick
4. Equivalent to 'Wick': A braid or bundle of fibre or other porous material (now generally twisted or woven cotton) in a candle, kerosene heater, oil lamp, etc., that draws...

等価語

例文

“トイレットペーパーの芯”

inner cardboard tube of a roll of toilet paper

“替え芯”

replacement lead

CEFRレベル