Any of a group of water-soluble colloidal carbohydrates of high molecular weight found in ripe fruits, such as apples, plums, and grapefruit, and used to jell various foods, drugs, and cosmetics.
果胶任一种用于凝结各种食物、药品和化装品的高分子量且溶于水的胶质碳水化合物，存在于如苹果、杏和葡萄等成熟的水果中
This strawberry jam is still runny: I can't get it to jell.
这草莓酱还是太稀，凝结不起来。
