Happy birthday!/Many happiness returns of the day!

Happy birthday!/Many happiness returns of the day! Happy birthday! happy birthday! Wish you a happy birthday and many happy returns of the day .what's mean? 英文歌曲 歌词中有一句happy birthday happy birthday Today is my birthday.Many classmates were coming my birthday party!I am very happy!So I writen t on mary's birthday ,she has many presents ,she feels very ( )《happy》 on my birthday,l am happy b__ l get many nice presents many gratulate my birth .i was very happy in that birthday party,and i will n happy birthday to you happy birthday!翻译 中文 Happy birthday to Happy birthday to you! Happy Birthday 歌词 Happy Birthday to you Happy Birthday to you Happy Birthday to XXX Happy Birthday to you happy birthday to happy birthday什么意思 Happy birthday hubby!