英语翻译蛋糕不在于它的大小,而在于那份心意和快乐的心情!人不在多,一个知己便是世界!钻石虽小,但却珍贵永恒!

It is not the size of the cake, but it is the share of mind and happniess that counts!
It does not depend on how many friends you have, sometimes a true friend beat all of them in the world.(唉这句.有点难.还是别看)
Eventhough the diamond is small, but it's eternally precious!

The cake is not its size, but in the heart and happy mood!
Not much, a friend is the world!
Diamond is small, but the precious eternal!

Despite the cake is bigger or not ,it implys someone having a desire and good mood .
It is not important how many people i could meet ,the best thing is to have a friend who would understand you well ,you will be happy person.
The diamond seems that small,but it could be expensive until forever.