宝宝生日快乐的英文是Happy birthday,baby!;生日快乐:happy birthday。;例:;

1、Happy birthday to you! ;祝您生日快乐!;

2、Happy Birthday! ;生日快乐!;

3、Happy birthday, sweetheart. ;生日快乐,亲爱的。;

4、He piped "happy birthday" on the cake. ;他在蛋糕上镶上了“生日快乐”的字样。