gratitude
/ˈgrætɪtju:d; ?@ -tu:d; `ɡrætəˌtud/ n[U]
~ (to sb) (for sth) being grateful; thankfulness 感激; 感谢
She felt eternal gratitude to him for saving her life. 她终生感激他的救命之恩.
I owe you a debt of gratitude for what you've done. 对你所做的事, 我欠你一份人情债.