「知恩圖報」的英文是什麼?

gratitude

n.
1. 感激之情,感恩,感謝[U][(+to/for)]
He acted so out of gratitude.
他是出於感激而這麼做的。
She felt an immense gratitude to Wilson.
她對威爾遜無比感激。

反義詞：
ingratitude
n.
1. 忘恩負義,不知感恩圖報[U]

Repay - verb.
例:
How can I ever repay you for your help.

Thinks giving and thanks giving giving.