cortical branches

例句：

1. 1. The tree's cortical branches are covered in green leaves.
   这棵树的皮质分支上长满了绿叶。
2. 2.The scientist used a microscope to examine the cortical branches of the plant.
   科学家用显微镜检查了植物的皮质分支。
3. 3. The cortical branches of the tree were so thick that they blocked out the sunlight.
   这棵树的皮质分支太厚，以至于挡住了阳光。