jelly既是可数名词，又是不可数名词。
jelly：n.果冻；肉冻；(不含水果块的)果酱
相关介绍
Apply this tube of jelly three times a day.
每日三次搽用这管药膏。
Advances in Using Royal Jelly to Improve Reproduction Performance of Animal.
蜂王浆提高动物繁殖性能的研究进展。
You won't get a good set if you put too much water in the jelly.
果冻搀水太多就凝固不好了。
