noun🔗Share辺材Sapwood; the soft, newer wood in the trunk of a tree found between the bark and the hardened heartwood."The tree's alburnum was a pale yellow color, easily distinguished from the darker heartwood. "その木の辺材は薄い黄色で、より濃い心材とは容易に区別できた。plantmaterialnaturebiologystructureChat with AIVocabulary GamePractice Reading
