在朋友或亲人过生日的时候，一句温暖的英文祝福不仅能表达心意，还能增添一份特别的仪式感。虽然很多人习惯用中文表达祝福，但用英文来写生日祝福语，既显得有新意，又能让对方感受到你的用心。

以下是一些适合用于生日的英文祝福短信，你可以根据不同的对象进行适当调整：

1. For a Close Friend

Happy birthday to the best friend I could ever ask for! Wishing you a day filled with joy, love, and all the things that make you smile.

2. For a Family Member

Wishing you a wonderful birthday full of happiness and good memories. You mean so much to me, and I’m grateful to have you in my life.

3. For a Colleague or Acquaintance

Happy birthday! May your day be as bright and special as you are. Wishing you success and joy in everything you do.

4. For a Romantic Partner

You make every day special, and today is no exception. Happy birthday to the love of my life. I hope your day is as amazing as you are.

5. General Birthday Greeting

On your special day, I want you to know how much you are appreciated. Wishing you a birthday that’s filled with love, laughter, and unforgettable moments.

如果你希望让这些祝福更个性化，可以加入一些共同的回忆、对方的兴趣爱好或者你们之间的专属昵称。这样不仅能让祝福更有温度，也更容易打动人心。

记住，真诚是最重要的。无论你选择哪种方式表达，只要出自内心，都会让对方感受到你的关爱与祝福。