淀粉粒质

例句：

1. 1.The rice grains are rich in starch.
   大米富含淀粉。
2. 2. Amylopectin is the main component of starch.
   淀粉的主要成分是直链淀粉。
3. 3. Starch is used as a thickening agent in cooking.
   淀粉用作烹饪中的增稠剂。