subterraneous stem

• 地下茎

subterraneous stem的用法和样例：

例句

1. The stem is reduced to a disklike structure, bearing concentric layers of fleshy leaf bases that comprise the food store.
   由许多肥厚的肉质鳞叶包围扁平或圆盘状的地下茎，其中储藏着大量的营养物质。
2. A potato consists mainly of starch stored by the potato plant in its underground stem.
   马铃薯的主要成份是淀粉，是由马铃薯身把它存在其地下茎里的。