tubercorm

例句：

1. 1. The potato tuber is a nutritious food source for many people.
   土豆块茎是许多人的营养食物来源。
2. 2. The plant produces tuberous roots that store water and nutrients.
   这种植物产生有储存水分和养分的块根。
3. 3. The tuber corms are commonly used as a vegetable in many Asian cuisines.
   块茎通常在许多亚洲菜中作为蔬菜使用。