"感谢"的英文是 "thank"。
来源："感谢"的英文来自拉丁语"gratias agere"，意思是"表示感激"。
例句：
Thank you for your help. (感谢你的帮助。)
I would pke to thank everyone for coming to my birthday party. (我想感谢大家来参加我的生日派对。)
I want to give a big thank you to my parents for their support. (我想向我的父母表示感谢，他们一直支持我。)