He smiled at them with gratitude.

　　他向他們笑了笑表示謝意。

　　I owe a debt of gratitude to all my family.

　　我很感激我的全家人。

　　Her arms tightened about his neck in gratitude.

　　她的雙臂緊緊摟住他的脖子，充滿(mǎn)感激。

　　He didn't even say thank you. There's gratitude for you!

　　他連個(gè)謝字都沒(méi)說(shuō)。瞧，這就是對你的感激！