seed tuber

例句：

1. 1. The potato is a seed tuber that is commonly used in cooking.
   土豆是一种常见的烹饪用种子块茎。
2. 2.The farmer planted the seeds of the new crop in the spring.
   农民在春天种植了新作物的种子。
3. 3. The tubers were harvested from the field and prepared for sale.
   从田间收获了块茎并准备出售。