noun 下载 🔗分享 韧皮部 A vascular tissue in land plants primarily responsible for the distribution of sugars and nutrients manufactured in the shoot Examples : "The phloem in a maple tree carries sugary sap from the leaves, where it's made by photosynthesis, down to the roots to provide them with energy. " 枫树中的韧皮部负责把叶子通过光合作用制造的含糖树液，从叶子向下输送到根部，为根部提供能量。 plant biology structure anatomy physiology science part agriculture nature vegetable 与AI对话词汇游戏阅读练习
