heart·wood
noun/ˈhɑːtwʊd/
/ˈhɑːrtwʊd/
[uncountable]- the hard older inner layers of the wood of a tree
compare sapwood(树木的)心材
单词 | heartwood |
释义 | heart·woodnoun/ˈhɑːtwʊd/ /ˈhɑːrtwʊd/ [uncountable]
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