HappyBirthDay是什么意思？

happy birthday翻译成中文意思是生日快乐。英式音标：[?h?p?] [?b??θde?] ，美式音标：[?h?p?] [?b?θde]。
例句：
1.He was greeted with a rousing chorus of Happy Birthday. 
迎接他的是大家齐唱《祝你生日快乐》，令他非常感动。
2.Happy Birthday! 
生日快乐！
3.Happy birthday, sweetheart. 
生日快乐，亲爱的。