英式：[ˈsæpwʊd]美式：[ˈsæpwʊd]
n.边材；白木质
用作名词 (n.)
The sapwood is yellowish with a hard and heavy heartwood. 边材微黄色，心材坚硬而且沉重。
The narrow band of sapwood is very similar in colour to the heartwood. 边材的窄带颜色与心材非常相似。
