亲爱的妈妈，今天是您的生日，我想用英文为您送上最真挚的祝福。

Mom, happy birthday! You are the most amazing person I know, and I feel so lucky to be your child.

您是我生命中最重要的人，无论我走到哪里，您都是我的坚强后盾。感谢您一直以来的支持和鼓励。

You are the most important person in my life, and no matter where I go, you are always my rock. Thank you for your constant support and encouragement.

您是一位伟大的母亲，您的爱和关心使我感到温暖和舒适。我希望今天是您的一天，充满了快乐和满足。

You are an amazing mother, and your love and care make me feel warm and comfortable. I hope today is a day filled with joy and fulfillment for you.

我爱您，妈妈。我希望您在今天和每一天都感到幸福和满足。

I love you, Mom. I hope you feel happy and fulfilled today and every day.