developing bacteroidal tissue

例句：

1. 1.The company is developing a new product line.
   该公司正在开发新产品线。
2. 2. The plant is developing its roots in the soil.
   植物正在土壤中发展其根系。
3. 3. The economy is developing rapidly in this region.
   该地区的经济正在迅速发展。