绿皮层

例句：

1. 1. The plant's green skin is a protective layer against the sun.
   植物的绿色皮肤是防止太阳直射的保护层。
2. 2. The scientist found that the cells in the green skin of the fruit were different from those in the flesh.
   科学家发现，水果果肉中的细胞与果皮中的细胞不同。
3. 3. The green skin of the leaves protects them from drying out in the sun.
   叶子的绿色皮肤保护它们免受阳光的干燥。