用刀分开这两块蛋糕。

Use a knife to separate the two pieces of cake.

我还要两块蛋糕。

I like few lot cakes.

我买了两块蛋糕；你要哪块都行。（宾语）

I have bought two cakes; you may have either.

他两块蛋糕都尝了尝，觉得都不好吃。

He tasted both cakes and decided neither was good.

我要一个总汇三明治，一份薯条，两块蛋糕。

I'll have a club sandwich and an order of fries, two slices of cake.