gratefulness
n. 感激，感恩
例句
He beheld Heidi's bright eyes looking up at him in gratefulness and love.
他看到海蒂明亮的眼睛注视着他，充满感激和爱。
You have my eternal gratefulness.
我永远感激您。
Do you accept the gratefulness challenge?
你接受感恩挑战吗？
