表達謝意用英文怎么表達？

　　I would like to express my gratitude to everyone for their hard work.

　　我要對所有辛勤勞動的人表示感謝。

　　I wish to express my gratitude to Kathy Davis for her immense practical help.

　　凱茜·戴維斯實實在在地幫了大忙，我想對她表示感謝。

　　I can hardly express my gratitude to you for your help.

　　對于你的幫助，我幾乎難以表達我的謝意。

　　No words can fully express my gratitude.

　　千言萬語也表達不盡我的感激心情。

　　Words can hardly express our gratitude to you.

　　我們對你的感激難以用語言表達。