如韧皮的

例句：

1. 1. The tree's bark is made up of the vascular system, including the xylem and phloem.
   这棵树的树皮由维管系统组成，包括木质部和韧皮部。
2. 2. The xylem transports water and minerals from the roots to the leaves.
   木质部将水和矿物质从根部输送到叶子。
3. 3. The phloem carries sugars and other organic compounds from the leaves to the rest of the plant.
   韧皮部携带糖和其他有机化合物从叶子传输到植物的其他部分。