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。复数直接后面加s，cakes.
I\'m afraid this cake has turned out very dry.
恐怕这个蛋糕烤得太干。
He cut himself a great thick slice of cake.
他给自己切了厚厚的一大片蛋糕。
I cut a piece of birthday cake for them all.
我给他们每个人都切了一块生日蛋糕。
