生日蛋糕的英文：
a birthday cake

参考例句：

How big the birthday cake is!
这生日蛋糕好大呀!

I'm baking a birthday cake for alex.
我正在给阿列克斯烤生日蛋糕。

A decade of candles were on his birthday cake.
他的生日蛋糕上有十支蜡烛。

I want a birthday cake with yellow icing.
我想要一个挂黄色糖衣的生日蛋糕。

birthday是什么意思：
n. 生日，诞辰

Happy birthday, dear friend.
生日快乐，亲爱的朋友。

And my birthday is on May the eighth.
我的生日是5月8号。

It was remiss of him to forget her birthday. = He was remiss to forget her birthday.
他竟忘了她的生日,实在是糊涂。

It's time to celebrate your birthday. Happy birthday to an attractive and intellectual girl.
是庆祝你生日的时候了,祝福美丽、聪颖的你生日快乐!

There will be ceremonies to mark the Queen's birthday.
庆祝女王生日将要举行典礼。

cake是什么意思：
n. 蛋糕；饼；块状物
v. 使结块，加块状物于；结块

A piece of cake
小事一桩

For dessert, we have fruit cake, cream cake and chestnut cake.
至于甜食，我们有水果蛋糕、奶油蛋糕和栗子蛋糕。

The knife easily cut into the cake.
刀一下子就切进了蛋糕。

The cakes were displayed in the window.
糕点陈列在橱窗中。

Dust sugar on to a cake.
将糖撒在糕点上。