cake既是可数名词也是不可数名词，cake在句中意思不同，情况也就不同。cake作“糕，糕饼”解时，既可用作可数名词,也可用作不可数名词，“一块蛋糕”常用a piece of cake来表示。作“饼状食物、块状物”解时，一般只用作可数名词。

扩展资料

Here's a piece of cake and a small coffee for you, sir.

先生，这是给您的一块蛋糕和一小杯咖啡。

There was only one piece of cake, but we cut it in two.

只有一块蛋糕，但我们把它切成两半儿。

Don't think this job a piece of cake. You'll have to rack your brains once you start on it.

别以为这工作是易如反掌的事，你做了就知道它是很伤脑筋的。

Learn English is a piece of cake.

学英语是小菜一碟。