why does Susan want to eat two pieces of cake?

why does Susan want to eat two pieces of cake? two pieces of cake的中文 为什么two pieces of cake 中的cake不加s? two pieces of cake 还是 two pieces of cakes?cake 到底可不可数 why does the girl eat two bowls of rice cake的用法以及是two pieces of cakes还是two pieces of cake,some cake还 two pieces of cake 用 is 还是 are I want to tell you two pieces of good news转 Why does she want to You can cut the cake ------ two pieces () the cake with small pieces,so it's easy to eat. can l have tow pieces of cake