1. The leaves of this plant are petiolate, meaning each leaf is attached to the stem by a slender stalk.
这种植物的叶子有叶柄，也就是说每片叶子都通过一个细长的茎连接到茎上。

2. The petiolate leaves allow for more efficient sunlight absorption in this species of tree.
这种树的叶子有叶柄，可以更有效地吸收阳光。