subhymenial layer

例句：

1. 1.The subhymenial layer is the layer below the epidermis, where cells are still growing.
   亚亚层是表皮层下面的一层，细胞仍在生长。
2. 2.In botany, the subhymenial layer is a layer of cells that are not yet fully differentiated.
   在植物学中，亚亚层是指尚未完全分化的细胞层。
3. 3. The subhymenial layer is important for plant growth and development.
   亚亚层对于植物的生长和发育至关重要。