I give you full power to act for me.

全权代我处理。

《新英汉大辞典》

You are me, acting the way you are acting. I give you the power to.

你是我，以你的方式表现出来的我！

youdao

Dad, your warm hands to give me confidence, give me infinite power, with a strong shoulder with my dad, thank you, ride the wind and waves, I wish you a Happy birthday!

爸爸，你用温暖的双手给我信心，给了我无穷的力量，用强有力的肩膀带着我乘风破浪，谢谢你爸爸，祝你生日快乐！

youdao