joy [dʒɔɪ]

以下由轻松背单词网站提供

n.欢喜，乐事，高兴；vt.使快乐，令人高兴；vi.欢喜

great happiness

To my great joy, my lost watch was found. 使我极为高兴的是我丢失的手表找到了。
It is very difficult to describe my joy in words. 我的快乐难以用语言来形容。