noun🔗Share边材，白木。 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. "这棵树的边材（白木）呈淡黄色，很容易与颜色较深的心材区分开来。plantmaterialnaturebiologystructureChat with AIVocabulary GamePractice Reading
