| 单词 | heartwood |
| 释义 | heartwood['hɑ:twud]n. 心材 heartwood heart.wood AHD: [härt“w‹d”] D.J. [6h$8t7w&d]K.K. [6h$rt7w&d]n.（名词）The older, inactive central wood of a tree or woody plant, usually darker and harder than the younger sapwood.Also called duramen 心材，树干：树木或木本植物中较老的不再生长的部分，通常比树龄短的边材更硬且颜色更深也作 duramen |
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