But the very end of such a network, the leaf, has a different architecture. Unlike the xylem and phloem, the veins in a leaf cross-link and loop.
但网络的最边缘——叶子，却具有不同的结构，与木质部和韧皮部不同，叶子的纹路交叉并成环。
2
“It just keeps getting better and better, ” said Justin McNaughton, amongthe 20, 000 people who have reserved a Leaf. “My wife thinks it’s funny becauseat the end of the day, we’re just buying a car.”