芯[xīn] 基本解释：
新英汉大词典：
- 芯[xīn]
- 名词- （灯芯） rush pith
以上内容来源于：《新汉英大辞典》
例句与用法：
The servant trims the lamp every morning.
A rigid board made of layers of fiberboard or paper bonded to a gypsum plaster core, used instead of plaster or wood panels in construction to form walls.
The great timbers, darkened now by smoke, wormed in places, looking rotten on the surface, but hard in the core, hard as iron.
芯的其他解释: