It would be nice to show your gratitude every now and then. 时常表示一下感激之情是好的。

We would like to express our gratitude to everyone. 我们想向所有的人表示我们的感激之情。

owe (sb) a debt of gratitude I felt I owed a debt of gratitude to my old teacher. 我非常感激我以前的老师。