块状根

例句：

1. 1. The plant has a bulbous root system.
   这种植物有一个块状的根系系统。
2. 2. The roots of the tree are deep and spread outward.
   这棵树的根很深，向外延伸。
3. 3. The scientist studied the roots of the plant to understand its growth patterns.
   这位科学家研究了这种植物的根部，以了解其生长模式。