granular cortex

例句：

1. 1.The grains of sand are granular and smooth.
   沙子的颗粒是粒状且光滑。
2. 2. The texture of the wool is granular and soft.
   羊毛的质地是粒状且柔软。
3. 3.The soil is granular and rich in nutrients.
   土壤是粒状的，富含养分。