生日快樂英文祝福語

生日快樂的英文祝福語如下：

* Happy birthday!

* Many happy returns of the day!

* May all the happiness in the world be with you on this special day!

* Wishing you a day filled with joy, love and happiness on your birthday!

* Have a wonderful birthday filled with all the good things in life!

請將以上祝福語根據個人需要進行修改和調整，以表達您對朋友的真摯祝福。